131425442 has 32 divisors (see below), whose sum is σ = 206807040. Its totient is φ = 62596800.

The previous prime is 131425439. The next prime is 131425457. The reversal of 131425442 is 244524131.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1034783 + ... + 1034909.

It is an arithmetic number, because the mean of its divisors is an integer number (6462720).

Almost surely, 2^131425442 is an apocalyptic number.

131425442 is a deficient number, since it is larger than the sum of its proper divisors (75381598).

131425442 is a wasteful number, since it uses less digits than its factorization.

131425442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 386.

The product of its digits is 3840, while the sum is 26.

The square root of 131425442 is about 11464.0935969661. The cubic root of 131425442 is about 508.4245139194.

Adding to 131425442 its reverse (244524131), we get a palindrome (375949573).

The spelling of 131425442 in words is "one hundred thirty-one million, four hundred twenty-five thousand, four hundred forty-two".