166312136 has 8 divisors (see below), whose sum is σ = 311835270. Its totient is φ = 83156064.

The previous prime is 166312123. The next prime is 166312147. The reversal of 166312136 is 631213661.

It is a happy number.

166312136 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 141372100 + 24940036 = 11890^2 + 4994^2 .

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

It is a junction number, because it is equal to n+sod(n) for n = 166312099 and 166312108.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10394501 + ... + 10394516.

Almost surely, 2^166312136 is an apocalyptic number.

It is an amenable number.

166312136 is a deficient number, since it is larger than the sum of its proper divisors (145523134).

166312136 is a wasteful number, since it uses less digits than its factorization.

166312136 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20789023 (or 20789019 counting only the distinct ones).

The product of its digits is 3888, while the sum is 29.

The square root of 166312136 is about 12896.2062638592. The cubic root of 166312136 is about 549.9307196482.

Adding to 166312136 its reverse (631213661), we get a palindrome (797525797).

The spelling of 166312136 in words is "one hundred sixty-six million, three hundred twelve thousand, one hundred thirty-six".