31462649 has 2 divisors, whose sum is σ = 31462650. Its totient is φ = 31462648.

The previous prime is 31462609. The next prime is 31462723. The reversal of 31462649 is 94626413.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 30525625 + 937024 = 5525^2 + 968^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-31462649 is a prime.

It is not a weakly prime, because it can be changed into another prime (31462609) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15731324 + 15731325.

It is an arithmetic number, because the mean of its divisors is an integer number (15731325).

Almost surely, 2^31462649 is an apocalyptic number.

It is an amenable number.

31462649 is a deficient number, since it is larger than the sum of its proper divisors (1).

31462649 is an equidigital number, since it uses as much as digits as its factorization.

31462649 is an evil number, because the sum of its binary digits is even.

The product of its digits is 31104, while the sum is 35.

The square root of 31462649 is about 5609.1576016368. The cubic root of 31462649 is about 315.6931038739.

The spelling of 31462649 in words is "thirty-one million, four hundred sixty-two thousand, six hundred forty-nine".