131401432 has 32 divisors (see below), whose sum is σ = 261468000. Its totient is φ = 61694464.

The previous prime is 131401429. The next prime is 131401441. The reversal of 131401432 is 234104131.

131401432 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 80658 + ... + 82270.

It is an arithmetic number, because the mean of its divisors is an integer number (8170875).

Almost surely, 2^131401432 is an apocalyptic number.

It is an amenable number.

131401432 is a deficient number, since it is larger than the sum of its proper divisors (130066568).

131401432 is a wasteful number, since it uses less digits than its factorization.

131401432 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2235 (or 2231 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 19.

The square root of 131401432 is about 11463.0463664769. The cubic root of 131401432 is about 508.3935508227.

Adding to 131401432 its reverse (234104131), we get a palindrome (365505563).

The spelling of 131401432 in words is "one hundred thirty-one million, four hundred one thousand, four hundred thirty-two".