102042015 has 8 divisors (see below), whose sum is σ = 163267248. Its totient is φ = 54422400.

The previous prime is 102042011. The next prime is 102042019. The reversal of 102042015 is 510240201.

It is an interprime number because it is at equal distance from previous prime (102042011) and next prime (102042019).

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 102042015 - 2² = 102042011 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (15), and also a Moran number because the ratio is a prime number: 6802801 = 102042015 / (1 + 0 + 2 + 0 + 4 + 2 + 0 + 1 + 5).

It is a junction number, because it is equal to n+sod(n) for n = 102041985 and 102042003.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (102042011) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3401386 + ... + 3401415.

It is an arithmetic number, because the mean of its divisors is an integer number (20408406).

Almost surely, 2^102042015 is an apocalyptic number.

102042015 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

102042015 is a deficient number, since it is larger than the sum of its proper divisors (61225233).

102042015 is an equidigital number, since it uses as much as digits as its factorization.

102042015 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6802809.

The product of its (nonzero) digits is 80, while the sum is 15.

The square root of 102042015 is about 10101.5847766576. The cubic root of 102042015 is about 467.2970169348.

Adding to 102042015 its reverse (510240201), we get a palindrome (612282216).

The spelling of 102042015 in words is "one hundred two million, forty-two thousand, fifteen".