137621316 has 24 divisors (see below), whose sum is σ = 366990400. Its totient is φ = 39320352.

The previous prime is 137621299. The next prime is 137621347. The reversal of 137621316 is 613126731.

137621316 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a nude number because it is divisible by every one of its digits.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 819091 + ... + 819258.

Almost surely, 2^137621316 is an apocalyptic number.

It is an amenable number.

137621316 is an abundant number, since it is smaller than the sum of its proper divisors (229369084).

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

137621316 is a wasteful number, since it uses less digits than its factorization.

137621316 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1638363 (or 1638361 counting only the distinct ones).

The product of its digits is 4536, while the sum is 30.

The square root of 137621316 is about 11731.2111906657. The cubic root of 137621316 is about 516.2918095850.

The spelling of 137621316 in words is "one hundred thirty-seven million, six hundred twenty-one thousand, three hundred sixteen".