137153881 has 4 divisors (see below), whose sum is σ = 137946852. Its totient is φ = 136360912.

The previous prime is 137153843. The next prime is 137153911. The reversal of 137153881 is 188351731.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 119006281 + 18147600 = 10909^2 + 4260^2 .

It is a cyclic number.

It is not a de Polignac number, because 137153881 - 2¹³ = 137145689 is a prime.

It is a super-2 number, since 2×137153881² = 37622374146724322, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 137153881.

It is not an unprimeable number, because it can be changed into a prime (137153281) 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, 396226 + ... + 396571.

It is an arithmetic number, because the mean of its divisors is an integer number (34486713).

Almost surely, 2^137153881 is an apocalyptic number.

It is an amenable number.

137153881 is a deficient number, since it is larger than the sum of its proper divisors (792971).

137153881 is an equidigital number, since it uses as much as digits as its factorization.

137153881 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 792970.

The product of its digits is 20160, while the sum is 37.

The square root of 137153881 is about 11711.2715364302. The cubic root of 137153881 is about 515.7066129084.

The spelling of 137153881 in words is "one hundred thirty-seven million, one hundred fifty-three thousand, eight hundred eighty-one".