32190131 has 2 divisors, whose sum is σ = 32190132. Its totient is φ = 32190130.

The previous prime is 32190091. The next prime is 32190211. The reversal of 32190131 is 13109123.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 32190131 - 2²² = 27995827 is a prime.

It is a super-2 number, since 2×32190131² = 2072409067594322, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (32190031) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 16095065 + 16095066.

It is an arithmetic number, because the mean of its divisors is an integer number (16095066).

Almost surely, 2^32190131 is an apocalyptic number.

32190131 is a deficient number, since it is larger than the sum of its proper divisors (1).

32190131 is an equidigital number, since it uses as much as digits as its factorization.

32190131 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 162, while the sum is 20.

The square root of 32190131 is about 5673.6347256411. The cubic root of 32190131 is about 318.1077486486.

Adding to 32190131 its reverse (13109123), we get a palindrome (45299254).

The spelling of 32190131 in words is "thirty-two million, one hundred ninety thousand, one hundred thirty-one".