131193707 has 4 divisors (see below), whose sum is σ = 131365080. Its totient is φ = 131022336.

The previous prime is 131193691. The next prime is 131193781. The reversal of 131193707 is 707391131.

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 131193707 - 2⁴ = 131193691 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (131193787) 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, 84533 + ... + 86070.

It is an arithmetic number, because the mean of its divisors is an integer number (32841270).

Almost surely, 2^131193707 is an apocalyptic number.

131193707 is a deficient number, since it is larger than the sum of its proper divisors (171373).

131193707 is an equidigital number, since it uses as much as digits as its factorization.

131193707 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 171372.

The product of its (nonzero) digits is 3969, while the sum is 32.

The square root of 131193707 is about 11453.9821459613. The cubic root of 131193707 is about 508.1255127795.

The spelling of 131193707 in words is "one hundred thirty-one million, one hundred ninety-three thousand, seven hundred seven".