102039907 has 4 divisors (see below), whose sum is σ = 102068200. Its totient is φ = 102011616.

The previous prime is 102039877. The next prime is 102039919. The reversal of 102039907 is 709930201.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-102039907 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (102031907) 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, 7782 + ... + 16267.

It is an arithmetic number, because the mean of its divisors is an integer number (25517050).

Almost surely, 2^102039907 is an apocalyptic number.

102039907 is a deficient number, since it is larger than the sum of its proper divisors (28293).

102039907 is an equidigital number, since it uses as much as digits as its factorization.

102039907 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28292.

The product of its (nonzero) digits is 3402, while the sum is 31.

The square root of 102039907 is about 10101.4804360549. The cubic root of 102039907 is about 467.2937990809.

The spelling of 102039907 in words is "one hundred two million, thirty-nine thousand, nine hundred seven".