137047561 has 12 divisors (see below), whose sum is σ = 160002192. Its totient is φ = 117042408.

The previous prime is 137047511. The next prime is 137047567. The reversal of 137047561 is 165740731.

It is not a de Polignac number, because 137047561 - 2¹⁵ = 137014793 is a prime.

It is not an unprimeable number, because it can be changed into a prime (137047567) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 8926 + ... + 18808.

It is an arithmetic number, because the mean of its divisors is an integer number (13333516).

Almost surely, 2^137047561 is an apocalyptic number.

It is an amenable number.

137047561 is a deficient number, since it is larger than the sum of its proper divisors (22954631).

137047561 is an equidigital number, since it uses as much as digits as its factorization.

137047561 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10180 (or 10173 counting only the distinct ones).

The product of its (nonzero) digits is 17640, while the sum is 34.

The square root of 137047561 is about 11706.7314396462. The cubic root of 137047561 is about 515.5733219882.

The spelling of 137047561 in words is "one hundred thirty-seven million, forty-seven thousand, five hundred sixty-one".