131572126 has 16 divisors (see below), whose sum is σ = 226391040. Its totient is φ = 56178360.

The previous prime is 131572109. The next prime is 131572193. The reversal of 131572126 is 621275131.

It is a happy number.

It is a super-2 number, since 2×131572126² = 34622448680319752, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 131572094 and 131572103.

It is a congruent number.

It is an unprimeable number.

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, 13546 + ... + 21133.

It is an arithmetic number, because the mean of its divisors is an integer number (14149440).

Almost surely, 2^131572126 is an apocalyptic number.

131572126 is a deficient number, since it is larger than the sum of its proper divisors (94818914).

131572126 is a wasteful number, since it uses less digits than its factorization.

131572126 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34959.

The product of its digits is 2520, while the sum is 28.

The square root of 131572126 is about 11470.4893531183. The cubic root of 131572126 is about 508.6135945420.

It can be divided in two parts, 1315 and 72126, that added together give a square (73441 = 271²).

The spelling of 131572126 in words is "one hundred thirty-one million, five hundred seventy-two thousand, one hundred twenty-six".