31425941 has 2 divisors, whose sum is σ = 31425942. Its totient is φ = 31425940.

The previous prime is 31425929. The next prime is 31426001. The reversal of 31425941 is 14952413.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 23280625 + 8145316 = 4825^2 + 2854^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-31425941 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (31427941) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15712970 + 15712971.

It is an arithmetic number, because the mean of its divisors is an integer number (15712971).

Almost surely, 2^31425941 is an apocalyptic number.

It is an amenable number.

31425941 is a deficient number, since it is larger than the sum of its proper divisors (1).

31425941 is an equidigital number, since it uses as much as digits as its factorization.

31425941 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 4320, while the sum is 29.

The square root of 31425941 is about 5605.8844975615. The cubic root of 31425941 is about 315.5702812830.

The spelling of 31425941 in words is "thirty-one million, four hundred twenty-five thousand, nine hundred forty-one".