137474561 has 8 divisors (see below), whose sum is σ = 157591104. Its totient is φ = 117477360.

The previous prime is 137474539. The next prime is 137474581. The reversal of 137474561 is 165474731.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 137474561 - 2¹⁴ = 137458177 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (137474521) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 27350 + ... + 31983.

It is an arithmetic number, because the mean of its divisors is an integer number (19698888).

Almost surely, 2^137474561 is an apocalyptic number.

It is an amenable number.

137474561 is a deficient number, since it is larger than the sum of its proper divisors (20116543).

137474561 is an equidigital number, since it uses as much as digits as its factorization.

137474561 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 59671.

The product of its digits is 70560, while the sum is 38.

The square root of 137474561 is about 11724.9546267779. The cubic root of 137474561 is about 516.1082252512.

The spelling of 137474561 in words is "one hundred thirty-seven million, four hundred seventy-four thousand, five hundred sixty-one".