131425602 has 64 divisors (see below), whose sum is σ = 330559488. Its totient is φ = 34122000.

The previous prime is 131425601. The next prime is 131425621. The reversal of 131425602 is 206524131.

It is a super-2 number, since 2×131425602² = 34545377722124808, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131425601) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 54727 + ... + 57077.

It is an arithmetic number, because the mean of its divisors is an integer number (5164992).

Almost surely, 2^131425602 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 131425602, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (165279744).

131425602 is an abundant number, since it is smaller than the sum of its proper divisors (199133886).

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

131425602 is a wasteful number, since it uses less digits than its factorization.

131425602 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2396 (or 2374 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 24.

The square root of 131425602 is about 11464.1005752741. The cubic root of 131425602 is about 508.4247202414.

Adding to 131425602 its reverse (206524131), we get a palindrome (337949733).

The spelling of 131425602 in words is "one hundred thirty-one million, four hundred twenty-five thousand, six hundred two".