31432601 has 2 divisors, whose sum is σ = 31432602. Its totient is φ = 31432600.

The previous prime is 31432589. The next prime is 31432603. The reversal of 31432601 is 10623413.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 29539225 + 1893376 = 5435^2 + 1376^2 .

It is a cyclic number.

It is not a de Polignac number, because 31432601 - 2¹⁰ = 31431577 is a prime.

Together with 31432603, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (31432603) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15716300 + 15716301.

It is an arithmetic number, because the mean of its divisors is an integer number (15716301).

Almost surely, 2^31432601 is an apocalyptic number.

It is an amenable number.

31432601 is a deficient number, since it is larger than the sum of its proper divisors (1).

31432601 is an equidigital number, since it uses as much as digits as its factorization.

31432601 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 432, while the sum is 20.

The square root of 31432601 is about 5606.4784847532. The cubic root of 31432601 is about 315.5925723114.

The spelling of 31432601 in words is "thirty-one million, four hundred thirty-two thousand, six hundred one".