131272122 has 16 divisors (see below), whose sum is σ = 266848992. Its totient is φ = 43039920.

The previous prime is 131272117. The next prime is 131272123. The reversal of 131272122 is 221272131.

It is not an unprimeable number, because it can be changed into a prime (131272123) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 178968 + ... + 179699.

It is an arithmetic number, because the mean of its divisors is an integer number (16678062).

Almost surely, 2^131272122 is an apocalyptic number.

131272122 is an abundant number, since it is smaller than the sum of its proper divisors (135576870).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

131272122 is a wasteful number, since it uses less digits than its factorization.

131272122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 358733.

The product of its digits is 336, while the sum is 21.

The square root of 131272122 is about 11457.4046799439. The cubic root of 131272122 is about 508.2267288291.

Subtracting 131272122 from its reverse (221272131), we obtain a palindrome (90000009).

The spelling of 131272122 in words is "one hundred thirty-one million, two hundred seventy-two thousand, one hundred twenty-two".