131401425 has 24 divisors (see below), whose sum is σ = 221878656. Its totient is φ = 68587840.

The previous prime is 131401409. The next prime is 131401429. The reversal of 131401425 is 524104131.

It is not a de Polignac number, because 131401425 - 2⁴ = 131401409 is a prime.

It is not an unprimeable number, because it can be changed into a prime (131401429) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 15114 + ... + 22163.

It is an arithmetic number, because the mean of its divisors is an integer number (9244944).

Almost surely, 2^131401425 is an apocalyptic number.

131401425 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

131401425 is a deficient number, since it is larger than the sum of its proper divisors (90477231).

131401425 is a wasteful number, since it uses less digits than its factorization.

131401425 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37337 (or 37332 counting only the distinct ones).

The product of its (nonzero) digits is 480, while the sum is 21.

The square root of 131401425 is about 11463.0460611480. The cubic root of 131401425 is about 508.3935417950.

Adding to 131401425 its reverse (524104131), we get a palindrome (655505556).

The spelling of 131401425 in words is "one hundred thirty-one million, four hundred one thousand, four hundred twenty-five".