102424215 has 16 divisors (see below), whose sum is σ = 164016000. Its totient is φ = 54580512.

The previous prime is 102424213. The next prime is 102424229. The reversal of 102424215 is 512424201.

It is not a de Polignac number, because 102424215 - 2¹ = 102424213 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 102424191 and 102424200.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (102424213) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 23476 + ... + 27494.

It is an arithmetic number, because the mean of its divisors is an integer number (10251000).

Almost surely, 2^102424215 is an apocalyptic number.

102424215 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

102424215 is a deficient number, since it is larger than the sum of its proper divisors (61591785).

102424215 is a wasteful number, since it uses less digits than its factorization.

102424215 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5726.

The product of its (nonzero) digits is 640, while the sum is 21.

The square root of 102424215 is about 10120.4849192121. The cubic root of 102424215 is about 467.8797128584.

Adding to 102424215 its reverse (512424201), we get a palindrome (614848416).

The spelling of 102424215 in words is "one hundred two million, four hundred twenty-four thousand, two hundred fifteen".