102155013 has 48 divisors (see below), whose sum is σ = 161021952. Its totient is φ = 64638000.

The previous prime is 102154993. The next prime is 102155047. The reversal of 102155013 is 310551201.

102155013 is a `hidden beast` number, since 102 + 1 + 550 + 13 = 666.

It is not a de Polignac number, because 102155013 - 2⁵ = 102154981 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (102155083) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 534748 + ... + 534938.

It is an arithmetic number, because the mean of its divisors is an integer number (3354624).

Almost surely, 2^102155013 is an apocalyptic number.

It is an amenable number.

102155013 is a deficient number, since it is larger than the sum of its proper divisors (58866939).

102155013 is an equidigital number, since it uses as much as digits as its factorization.

102155013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 308 (or 296 counting only the distinct ones).

The product of its (nonzero) digits is 150, while the sum is 18.

The square root of 102155013 is about 10107.1763119083. The cubic root of 102155013 is about 467.4694431304.

The spelling of 102155013 in words is "one hundred two million, one hundred fifty-five thousand, thirteen".