137752881 has 8 divisors (see below), whose sum is σ = 209909184. Its totient is φ = 78715920.

The previous prime is 137752877. The next prime is 137752897. The reversal of 137752881 is 188257731.

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

It is not a de Polignac number, because 137752881 - 2² = 137752877 is a prime.

It is a super-2 number, since 2×137752881² = 37951712447600322, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (137752481) 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 7 ways as a sum of consecutive naturals, for example, 3279810 + ... + 3279851.

It is an arithmetic number, because the mean of its divisors is an integer number (26238648).

Almost surely, 2^137752881 is an apocalyptic number.

It is an amenable number.

137752881 is a deficient number, since it is larger than the sum of its proper divisors (72156303).

137752881 is an equidigital number, since it uses as much as digits as its factorization.

137752881 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6559671.

The product of its digits is 94080, while the sum is 42.

The square root of 137752881 is about 11736.8173283902. The cubic root of 137752881 is about 516.4562809518.

The spelling of 137752881 in words is "one hundred thirty-seven million, seven hundred fifty-two thousand, eight hundred eighty-one".