31499341 has 2 divisors, whose sum is σ = 31499342. Its totient is φ = 31499340.

The previous prime is 31499329. The next prime is 31499371. The reversal of 31499341 is 14399413.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 22372900 + 9126441 = 4730^2 + 3021^2 .

It is a cyclic number.

It is not a de Polignac number, because 31499341 - 2⁵ = 31499309 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 31499297 and 31499306.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (31499311) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15749670 + 15749671.

It is an arithmetic number, because the mean of its divisors is an integer number (15749671).

Almost surely, 2^31499341 is an apocalyptic number.

It is an amenable number.

31499341 is a deficient number, since it is larger than the sum of its proper divisors (1).

31499341 is an equidigital number, since it uses as much as digits as its factorization.

31499341 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 11664, while the sum is 34.

The square root of 31499341 is about 5612.4273714677. The cubic root of 31499341 is about 315.8157774966.

The spelling of 31499341 in words is "thirty-one million, four hundred ninety-nine thousand, three hundred forty-one".