102658881 has 24 divisors (see below), whose sum is σ = 156033120. Its totient is φ = 59844096.

The previous prime is 102658877. The next prime is 102658889. The reversal of 102658881 is 188856201.

It is not a de Polignac number, because 102658881 - 2² = 102658877 is a prime.

It is a super-2 number, since 2×102658881² = 21077691696344322, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (102658889) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 4305 + ... + 14961.

It is an arithmetic number, because the mean of its divisors is an integer number (6501380).

Almost surely, 2^102658881 is an apocalyptic number.

It is an amenable number.

102658881 is a deficient number, since it is larger than the sum of its proper divisors (53374239).

102658881 is a wasteful number, since it uses less digits than its factorization.

102658881 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10705 (or 10692 counting only the distinct ones).

The product of its (nonzero) digits is 30720, while the sum is 39.

The square root of 102658881 is about 10132.0719006529. The cubic root of 102658881 is about 468.2367629166.

The spelling of 102658881 in words is "one hundred two million, six hundred fifty-eight thousand, eight hundred eighty-one".