131377347 has 18 divisors (see below), whose sum is σ = 192978396. Its totient is φ = 86127120.

The previous prime is 131377339. The next prime is 131377387. The reversal of 131377347 is 743773131.

It is a happy number.

It is not a de Polignac number, because 131377347 - 2³ = 131377339 is a prime.

It is not an unprimeable number, because it can be changed into a prime (131377387) by changing a digit.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 31528 + ... + 35450.

It is an arithmetic number, because the mean of its divisors is an integer number (10721022).

Almost surely, 2^131377347 is an apocalyptic number.

131377347 is a deficient number, since it is larger than the sum of its proper divisors (61601049).

131377347 is an equidigital number, since it uses as much as digits as its factorization.

131377347 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4051 (or 3987 counting only the distinct ones).

The product of its digits is 37044, while the sum is 36.

The square root of 131377347 is about 11461.9957686260. The cubic root of 131377347 is about 508.3624872168.

The spelling of 131377347 in words is "one hundred thirty-one million, three hundred seventy-seven thousand, three hundred forty-seven".