136461812 has 6 divisors (see below), whose sum is σ = 238808178. Its totient is φ = 68230904.

The previous prime is 136461797. The next prime is 136461823. The reversal of 136461812 is 218164631.

It can be written as a sum of positive squares in only one way, i.e., 133726096 + 2735716 = 11564^2 + 1654^2 .

It is a super-2 number, since 2×136461812² = 37243652268646688, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 17057723 + ... + 17057730.

It is an arithmetic number, because the mean of its divisors is an integer number (39801363).

Almost surely, 2^136461812 is an apocalyptic number.

It is an amenable number.

136461812 is a deficient number, since it is larger than the sum of its proper divisors (102346366).

136461812 is a wasteful number, since it uses less digits than its factorization.

136461812 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34115457 (or 34115455 counting only the distinct ones).

The product of its digits is 6912, while the sum is 32.

The square root of 136461812 is about 11681.6870356982. The cubic root of 136461812 is about 514.8377432100.

The spelling of 136461812 in words is "one hundred thirty-six million, four hundred sixty-one thousand, eight hundred twelve".