102251313 has 24 divisors (see below), whose sum is σ = 153985728. Its totient is φ = 65320992.

The previous prime is 102251309. The next prime is 102251321. The reversal of 102251313 is 313152201.

102251313 is a `hidden beast` number, since 102 + 251 + 313 = 666.

It is not a de Polignac number, because 102251313 - 2² = 102251309 is a prime.

It is not an unprimeable number, because it can be changed into a prime (102251333) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 20020 + ... + 24602.

It is an arithmetic number, because the mean of its divisors is an integer number (6416072).

Almost surely, 2^102251313 is an apocalyptic number.

It is an amenable number.

102251313 is a deficient number, since it is larger than the sum of its proper divisors (51734415).

102251313 is a wasteful number, since it uses less digits than its factorization.

102251313 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4693 (or 4690 counting only the distinct ones).

The product of its (nonzero) digits is 180, while the sum is 18.

The square root of 102251313 is about 10111.9391315415. The cubic root of 102251313 is about 467.6162891432.

The spelling of 102251313 in words is "one hundred two million, two hundred fifty-one thousand, three hundred thirteen".