371981137 has 8 divisors (see below), whose sum is σ = 406480032. Its totient is φ = 337596000.

The previous prime is 371981123. The next prime is 371981147. The reversal of 371981137 is 731189173.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-371981137 is a prime.

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 371981137.

It is not an unprimeable number, because it can be changed into a prime (371981147) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 21523 + ... + 34744.

It is an arithmetic number, because the mean of its divisors is an integer number (50810004).

Almost surely, 2^371981137 is an apocalyptic number.

It is an amenable number.

371981137 is a deficient number, since it is larger than the sum of its proper divisors (34498895).

371981137 is a wasteful number, since it uses less digits than its factorization.

371981137 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 56879.

The product of its digits is 31752, while the sum is 40.

The square root of 371981137 is about 19286.8125152914. The cubic root of 371981137 is about 719.1844785106.

The spelling of 371981137 in words is "three hundred seventy-one million, nine hundred eighty-one thousand, one hundred thirty-seven".