137577994 has 4 divisors (see below), whose sum is σ = 206366994. Its totient is φ = 68788996.

The previous prime is 137577989. The next prime is 137578013. The reversal of 137577994 is 499775731.

137577994 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 116920969 + 20657025 = 10813^2 + 4545^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 34394497 + ... + 34394500.

Almost surely, 2^137577994 is an apocalyptic number.

137577994 is a deficient number, since it is larger than the sum of its proper divisors (68789000).

137577994 is an equidigital number, since it uses as much as digits as its factorization.

137577994 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 68788999.

The product of its digits is 1666980, while the sum is 52.

The square root of 137577994 is about 11729.3646034216. The cubic root of 137577994 is about 516.2376291673.

The spelling of 137577994 in words is "one hundred thirty-seven million, five hundred seventy-seven thousand, nine hundred ninety-four".