137252371 has 4 divisors (see below), whose sum is σ = 144476200. Its totient is φ = 130028544.

The previous prime is 137252363. The next prime is 137252377. The reversal of 137252371 is 173252731.

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 137252371 - 2³ = 137252363 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (137252377) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3611886 + ... + 3611923.

It is an arithmetic number, because the mean of its divisors is an integer number (36119050).

Almost surely, 2^137252371 is an apocalyptic number.

137252371 is a deficient number, since it is larger than the sum of its proper divisors (7223829).

137252371 is an equidigital number, since it uses as much as digits as its factorization.

137252371 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7223828.

The product of its digits is 8820, while the sum is 31.

The square root of 137252371 is about 11715.4757052371. The cubic root of 137252371 is about 515.8300260920.

The spelling of 137252371 in words is "one hundred thirty-seven million, two hundred fifty-two thousand, three hundred seventy-one".