137549746 has 4 divisors (see below), whose sum is σ = 206324622. Its totient is φ = 68774872.

The previous prime is 137549723. The next prime is 137549747. The reversal of 137549746 is 647945731.

137549746 is digitally balanced in base 2, 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., 69305625 + 68244121 = 8325^2 + 8261^2 .

It is a junction number, because it is equal to n+sod(n) for n = 137549696 and 137549705.

It is not an unprimeable number, because it can be changed into a prime (137549747) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 34387435 + ... + 34387438.

Almost surely, 2^137549746 is an apocalyptic number.

137549746 is a deficient number, since it is larger than the sum of its proper divisors (68774876).

137549746 is an equidigital number, since it uses as much as digits as its factorization.

137549746 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 68774875.

The product of its digits is 635040, while the sum is 46.

The square root of 137549746 is about 11728.1603843058. The cubic root of 137549746 is about 516.2022948373.

The spelling of 137549746 in words is "one hundred thirty-seven million, five hundred forty-nine thousand, seven hundred forty-six".