131421032 has 32 divisors (see below), whose sum is σ = 250723200. Its totient is φ = 64571904.

The previous prime is 131421013. The next prime is 131421053. The reversal of 131421032 is 230124131.

It is a self number, because there is not a number n which added to its sum of digits gives 131421032.

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, 125969 + ... + 127007.

It is an arithmetic number, because the mean of its divisors is an integer number (7835100).

Almost surely, 2^131421032 is an apocalyptic number.

It is an amenable number.

131421032 is a deficient number, since it is larger than the sum of its proper divisors (119302168).

131421032 is a wasteful number, since it uses less digits than its factorization.

131421032 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1305 (or 1301 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 17.

The square root of 131421032 is about 11463.9012556808. The cubic root of 131421032 is about 508.4188271027.

Adding to 131421032 its reverse (230124131), we get a palindrome (361545163).

The spelling of 131421032 in words is "one hundred thirty-one million, four hundred twenty-one thousand, thirty-two".