10102981 has 16 divisors (see below), whose sum is σ = 12403584. Its totient is φ = 8031744.

The previous prime is 10102973. The next prime is 10102987. The reversal of 10102981 is 18920101.

It is not a de Polignac number, because 10102981 - 2³ = 10102973 is a prime.

It is a super-2 number, since 2×10102981² = 204140450172722, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10102987) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8106 + ... + 9268.

It is an arithmetic number, because the mean of its divisors is an integer number (775224).

Almost surely, 2^10102981 is an apocalyptic number.

It is an amenable number.

10102981 is a deficient number, since it is larger than the sum of its proper divisors (2300603).

10102981 is a wasteful number, since it uses less digits than its factorization.

10102981 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1260.

The product of its (nonzero) digits is 144, while the sum is 22.

The square root of 10102981 is about 3178.5186801402. The cubic root of 10102981 is about 216.1804975615.

The spelling of 10102981 in words is "ten million, one hundred two thousand, nine hundred eighty-one".