131425452 has 18 divisors (see below), whose sum is σ = 332214428. Its totient is φ = 43808472.

The previous prime is 131425439. The next prime is 131425457. The reversal of 131425452 is 254524131.

It is a tau number, because it is divible by the number of its divisors (18).

It is not an unprimeable number, because it can be changed into a prime (131425457) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1825318 + ... + 1825389.

Almost surely, 2^131425452 is an apocalyptic number.

131425452 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

131425452 is an abundant number, since it is smaller than the sum of its proper divisors (200788976).

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

131425452 is a wasteful number, since it uses less digits than its factorization.

131425452 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3650717 (or 3650712 counting only the distinct ones).

The product of its digits is 4800, while the sum is 27.

The square root of 131425452 is about 11464.0940331105. The cubic root of 131425452 is about 508.4245268146.

Adding to 131425452 its reverse (254524131), we get a palindrome (385949583).

The spelling of 131425452 in words is "one hundred thirty-one million, four hundred twenty-five thousand, four hundred fifty-two".