137372091 has 8 divisors (see below), whose sum is σ = 183358800. Its totient is φ = 91483392.

The previous prime is 137372089. The next prime is 137372107. The reversal of 137372091 is 190273731.

It is a happy number.

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

It is not a de Polignac number, because 137372091 - 2¹ = 137372089 is a prime.

It is not an unprimeable number, because it can be changed into a prime (137372021) 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 7 ways as a sum of consecutive naturals, for example, 21166 + ... + 26883.

It is an arithmetic number, because the mean of its divisors is an integer number (22919850).

Almost surely, 2^137372091 is an apocalyptic number.

137372091 is a deficient number, since it is larger than the sum of its proper divisors (45986709).

137372091 is an equidigital number, since it uses as much as digits as its factorization.

137372091 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 49005.

The product of its (nonzero) digits is 7938, while the sum is 33.

The square root of 137372091 is about 11720.5840724769. The cubic root of 137372091 is about 515.9799621147.

The spelling of 137372091 in words is "one hundred thirty-seven million, three hundred seventy-two thousand, ninety-one".