102406425 has 48 divisors (see below), whose sum is σ = 186684480. Its totient is φ = 49120000.

The previous prime is 102406393. The next prime is 102406429. The reversal of 102406425 is 524604201.

It is not a de Polignac number, because 102406425 - 2⁵ = 102406393 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 102406395 and 102406404.

It is not an unprimeable number, because it can be changed into a prime (102406429) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 82711 + ... + 83939.

It is an arithmetic number, because the mean of its divisors is an integer number (3889260).

Almost surely, 2^102406425 is an apocalyptic number.

102406425 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

102406425 is a deficient number, since it is larger than the sum of its proper divisors (84278055).

102406425 is a wasteful number, since it uses less digits than its factorization.

102406425 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1354 (or 1349 counting only the distinct ones).

The product of its (nonzero) digits is 1920, while the sum is 24.

The square root of 102406425 is about 10119.6059705900. The cubic root of 102406425 is about 467.8526227084.

It can be divided in two parts, 102406 and 425, that added together give a triangular number (102831 = T₄₅₃).

The spelling of 102406425 in words is "one hundred two million, four hundred six thousand, four hundred twenty-five".