137591077 has 4 divisors (see below), whose sum is σ = 148175020. Its totient is φ = 127007136.

The previous prime is 137591053. The next prime is 137591087. The reversal of 137591077 is 770195731.

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

It can be written as a sum of positive squares in 2 ways, for example, as 26204161 + 111386916 = 5119^2 + 10554^2 .

It is a cyclic number.

It is not a de Polignac number, because 137591077 - 2¹¹ = 137589029 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (137591017) by changing a digit.

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 in 3 ways as a sum of consecutive naturals, for example, 5291952 + ... + 5291977.

It is an arithmetic number, because the mean of its divisors is an integer number (37043755).

Almost surely, 2^137591077 is an apocalyptic number.

It is an amenable number.

137591077 is a deficient number, since it is larger than the sum of its proper divisors (10583943).

137591077 is a wasteful number, since it uses less digits than its factorization.

137591077 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10583942.

The product of its (nonzero) digits is 46305, while the sum is 40.

The square root of 137591077 is about 11729.9222930077. The cubic root of 137591077 is about 516.2539925469.

The spelling of 137591077 in words is "one hundred thirty-seven million, five hundred ninety-one thousand, seventy-seven".