102425039 has 4 divisors (see below), whose sum is σ = 104104200. Its totient is φ = 100745880.

The previous prime is 102425033. The next prime is 102425041. The reversal of 102425039 is 930524201.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 930524201 = 97 ⋅9593033.

It is a cyclic number.

It is not a de Polignac number, because 102425039 - 2⁸ = 102424783 is a prime.

It is a super-2 number, since 2×102425039² = 20981777228303042, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 102424999 and 102425017.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (102425033) 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, 839489 + ... + 839610.

It is an arithmetic number, because the mean of its divisors is an integer number (26026050).

Almost surely, 2^102425039 is an apocalyptic number.

102425039 is a deficient number, since it is larger than the sum of its proper divisors (1679161).

102425039 is an equidigital number, since it uses as much as digits as its factorization.

102425039 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1679160.

The product of its (nonzero) digits is 2160, while the sum is 26.

The square root of 102425039 is about 10120.5256286420. The cubic root of 102425039 is about 467.8809675481.

The spelling of 102425039 in words is "one hundred two million, four hundred twenty-five thousand, thirty-nine".