107213992 has 8 divisors (see below), whose sum is σ = 201026250. Its totient is φ = 53606992.

The previous prime is 107213983. The next prime is 107213999. The reversal of 107213992 is 299312701.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 106378596 + 835396 = 10314^2 + 914^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is a super-2 number, since 2×107213992² = 22989680161152128, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (107213999) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6700867 + ... + 6700882.

Almost surely, 2^107213992 is an apocalyptic number.

It is an amenable number.

107213992 is a deficient number, since it is larger than the sum of its proper divisors (93812258).

107213992 is a wasteful number, since it uses less digits than its factorization.

107213992 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13401755 (or 13401751 counting only the distinct ones).

The product of its (nonzero) digits is 6804, while the sum is 34.

The square root of 107213992 is about 10354.4189600383. The cubic root of 107213992 is about 475.0622145656.

The spelling of 107213992 in words is "one hundred seven million, two hundred thirteen thousand, nine hundred ninety-two".