102635225 has 72 divisors (see below), whose sum is σ = 165447744. Its totient is φ = 61776000.

The previous prime is 102635201. The next prime is 102635243. The reversal of 102635225 is 522536201.

102635225 = 1141² + 1142² + ... + 1214².

It is not a de Polignac number, because 102635225 - 2¹⁰ = 102634201 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 102635194 and 102635203.

It is an unprimeable number.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 783410 + ... + 783540.

Almost surely, 2^102635225 is an apocalyptic number.

It is an amenable number.

102635225 is a deficient number, since it is larger than the sum of its proper divisors (62812519).

102635225 is a wasteful number, since it uses less digits than its factorization.

102635225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 207 (or 191 counting only the distinct ones).

The product of its (nonzero) digits is 3600, while the sum is 26.

The square root of 102635225 is about 10130.9044512324. The cubic root of 102635225 is about 468.2007944105.

The spelling of 102635225 in words is "one hundred two million, six hundred thirty-five thousand, two hundred twenty-five".