101981976 has 16 divisors (see below), whose sum is σ = 254955000. Its totient is φ = 33993984.

The previous prime is 101981947. The next prime is 101981983. The reversal of 101981976 is 679189101.

It is a congruent number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 2124601 + ... + 2124648.

Almost surely, 2^101981976 is an apocalyptic number.

It is an amenable number.

101981976 is an abundant number, since it is smaller than the sum of its proper divisors (152973024).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

101981976 is a wasteful number, since it uses less digits than its factorization.

101981976 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4249258 (or 4249254 counting only the distinct ones).

The product of its (nonzero) digits is 27216, while the sum is 42.

The square root of 101981976 is about 10098.6125779733. The cubic root of 101981976 is about 467.2053502820.

The spelling of 101981976 in words is "one hundred one million, nine hundred eighty-one thousand, nine hundred seventy-six".