102042029 has 4 divisors (see below), whose sum is σ = 104213184. Its totient is φ = 99870876.

The previous prime is 102042019. The next prime is 102042037. The reversal of 102042029 is 920240201.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 920240201 = 863 ⋅1066327.

It is a cyclic number.

It is not a de Polignac number, because 102042029 - 2⁸ = 102041773 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 102042029.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (102042019) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1085507 + ... + 1085600.

It is an arithmetic number, because the mean of its divisors is an integer number (26053296).

Almost surely, 2^102042029 is an apocalyptic number.

It is an amenable number.

102042029 is a deficient number, since it is larger than the sum of its proper divisors (2171155).

102042029 is an equidigital number, since it uses as much as digits as its factorization.

102042029 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2171154.

The product of its (nonzero) digits is 288, while the sum is 20.

The square root of 102042029 is about 10101.5854696181. The cubic root of 102042029 is about 467.2970383056.

The spelling of 102042029 in words is "one hundred two million, forty-two thousand, twenty-nine".