131928711 has 4 divisors (see below), whose sum is σ = 175904952. Its totient is φ = 87952472.

The previous prime is 131928707. The next prime is 131928751. The reversal of 131928711 is 117829131.

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 131928711 - 2² = 131928707 is a prime.

It is a super-2 number, since 2×131928711² = 34810369572243042, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131928701) 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, 21988116 + ... + 21988121.

It is an arithmetic number, because the mean of its divisors is an integer number (43976238).

Almost surely, 2^131928711 is an apocalyptic number.

131928711 is a deficient number, since it is larger than the sum of its proper divisors (43976241).

131928711 is an equidigital number, since it uses as much as digits as its factorization.

131928711 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 43976240.

The product of its digits is 3024, while the sum is 33.

The square root of 131928711 is about 11486.0224185747. The cubic root of 131928711 is about 509.0726593073.

The spelling of 131928711 in words is "one hundred thirty-one million, nine hundred twenty-eight thousand, seven hundred eleven".