31343049 has 6 divisors (see below), whose sum is σ = 45273306. Its totient is φ = 20895360.

The previous prime is 31343023. The next prime is 31343057. The reversal of 31343049 is 94034313.

It can be written as a sum of positive squares in only one way, i.e., 19316025 + 12027024 = 4395^2 + 3468^2 .

It is not a de Polignac number, because 31343049 - 2⁸ = 31342793 is a prime.

It is not an unprimeable number, because it can be changed into a prime (31342049) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1741272 + ... + 1741289.

It is an arithmetic number, because the mean of its divisors is an integer number (7545551).

Almost surely, 2^31343049 is an apocalyptic number.

It is an amenable number.

31343049 is a deficient number, since it is larger than the sum of its proper divisors (13930257).

31343049 is a wasteful number, since it uses less digits than its factorization.

31343049 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3482567 (or 3482564 counting only the distinct ones).

The product of its (nonzero) digits is 3888, while the sum is 27.

The square root of 31343049 is about 5598.4863132815. The cubic root of 31343049 is about 315.2925777486.

It can be divided in two parts, 3134304 and 9, that added together give a palindrome (3134313).

The spelling of 31343049 in words is "thirty-one million, three hundred forty-three thousand, forty-nine".