137677261 has 4 divisors (see below), whose sum is σ = 137768032. Its totient is φ = 137586492.

The previous prime is 137677247. The next prime is 137677273. The reversal of 137677261 is 162776731.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 137677261 - 2⁵ = 137677229 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 (137677291) 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, 43071 + ... + 46156.

It is an arithmetic number, because the mean of its divisors is an integer number (34442008).

Almost surely, 2^137677261 is an apocalyptic number.

It is an amenable number.

137677261 is a deficient number, since it is larger than the sum of its proper divisors (90771).

137677261 is an equidigital number, since it uses as much as digits as its factorization.

137677261 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 90770.

The product of its digits is 74088, while the sum is 40.

The square root of 137677261 is about 11733.5953995355. The cubic root of 137677261 is about 516.3617600672.

The spelling of 137677261 in words is "one hundred thirty-seven million, six hundred seventy-seven thousand, two hundred sixty-one".