131725521134 has 4 divisors (see below), whose sum is σ = 197588281704. Its totient is φ = 65862760566.

The previous prime is 131725521131. The next prime is 131725521143. The reversal of 131725521134 is 431125527131.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 431125527131 = 13 ⋅33163502087.

It is a super-2 number, since 2×131725521134² (a number of 23 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 131725521094 and 131725521103.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131725521131) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32931380282 + ... + 32931380285.

It is an arithmetic number, because the mean of its divisors is an integer number (49397070426).

Almost surely, 2^131725521134 is an apocalyptic number.

131725521134 is a deficient number, since it is larger than the sum of its proper divisors (65862760570).

131725521134 is an equidigital number, since it uses as much as digits as its factorization.

131725521134 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 65862760569.

The product of its digits is 25200, while the sum is 35.

The spelling of 131725521134 in words is "one hundred thirty-one billion, seven hundred twenty-five million, five hundred twenty-one thousand, one hundred thirty-four".