136217916 has 48 divisors (see below), whose sum is σ = 371750400. Its totient is φ = 43015536.

The previous prime is 136217909. The next prime is 136217947. The reversal of 136217916 is 619712631.

136217916 is a `hidden beast` number, since 13 + 621 + 7 + 9 + 16 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 31140 + ... + 35243.

It is an arithmetic number, because the mean of its divisors is an integer number (7744800).

Almost surely, 2^136217916 is an apocalyptic number.

It is an amenable number.

136217916 is an abundant number, since it is smaller than the sum of its proper divisors (235532484).

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

136217916 is a wasteful number, since it uses less digits than its factorization.

136217916 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 66415 (or 66407 counting only the distinct ones).

The product of its digits is 13608, while the sum is 36.

The square root of 136217916 is about 11671.2431214503. The cubic root of 136217916 is about 514.5308398925.

The spelling of 136217916 in words is "one hundred thirty-six million, two hundred seventeen thousand, nine hundred sixteen".