31480049 has 2 divisors, whose sum is σ = 31480050. Its totient is φ = 31480048.

The previous prime is 31480021. The next prime is 31480061. The reversal of 31480049 is 94008413.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 31080625 + 399424 = 5575^2 + 632^2 .

It is a cyclic number.

It is not a de Polignac number, because 31480049 - 2⁸ = 31479793 is a prime.

It is not a weakly prime, because it can be changed into another prime (31480019) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15740024 + 15740025.

It is an arithmetic number, because the mean of its divisors is an integer number (15740025).

Almost surely, 2^31480049 is an apocalyptic number.

It is an amenable number.

31480049 is a deficient number, since it is larger than the sum of its proper divisors (1).

31480049 is an equidigital number, since it uses as much as digits as its factorization.

31480049 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3456, while the sum is 29.

The square root of 31480049 is about 5610.7084222939. The cubic root of 31480049 is about 315.7512897745.

The spelling of 31480049 in words is "thirty-one million, four hundred eighty thousand, forty-nine".