137802131 has 4 divisors (see below), whose sum is σ = 143793552. Its totient is φ = 131810712.

The previous prime is 137802121. The next prime is 137802163. The reversal of 137802131 is 131208731.

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

It is a cyclic number.

It is not a de Polignac number, because 137802131 - 2²⁶ = 70693267 is a prime.

It is a super-2 number, since 2×137802131² = 37978854616282322, 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 137802131.

It is not an unprimeable number, because it can be changed into a prime (137802121) 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, 2995676 + ... + 2995721.

It is an arithmetic number, because the mean of its divisors is an integer number (35948388).

Almost surely, 2^137802131 is an apocalyptic number.

137802131 is a deficient number, since it is larger than the sum of its proper divisors (5991421).

137802131 is an equidigital number, since it uses as much as digits as its factorization.

137802131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5991420.

The product of its (nonzero) digits is 1008, while the sum is 26.

The square root of 137802131 is about 11738.9152394930. The cubic root of 137802131 is about 516.5178221721.

The spelling of 137802131 in words is "one hundred thirty-seven million, eight hundred two thousand, one hundred thirty-one".