902425139 has 24 divisors (see below), whose sum is σ = 1137539424. Its totient is φ = 700761600.

The previous prime is 902425091. The next prime is 902425157. The reversal of 902425139 is 931524209.

It is not a de Polignac number, because 902425139 - 2¹⁶ = 902359603 is a prime.

It is a super-2 number, since 2×902425139² = 1628742262998338642, which contains 22 as substring.

It is a Smith number, since the sum of its digits (35) coincides with the sum of the digits of its prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 902425099 and 902425108.

It is not an unprimeable number, because it can be changed into a prime (902425189) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 266819 + ... + 270179.

It is an arithmetic number, because the mean of its divisors is an integer number (47397476).

Almost surely, 2^902425139 is an apocalyptic number.

902425139 is a deficient number, since it is larger than the sum of its proper divisors (235114285).

902425139 is a wasteful number, since it uses less digits than its factorization.

902425139 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3707 (or 3696 counting only the distinct ones).

The product of its (nonzero) digits is 19440, while the sum is 35.

The square root of 902425139 is about 30040.3917917194. The cubic root of 902425139 is about 966.3558090565.

The spelling of 902425139 in words is "nine hundred two million, four hundred twenty-five thousand, one hundred thirty-nine".