31368457 has 8 divisors (see below), whose sum is σ = 32626880. Its totient is φ = 30134160.

The previous prime is 31368437. The next prime is 31368473. The reversal of 31368457 is 75486313.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 31368457 - 2¹⁹ = 30844169 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (31368427) 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 7 ways as a sum of consecutive naturals, for example, 3357 + ... + 8602.

It is an arithmetic number, because the mean of its divisors is an integer number (4078360).

Almost surely, 2^31368457 is an apocalyptic number.

It is an amenable number.

31368457 is a deficient number, since it is larger than the sum of its proper divisors (1258423).

31368457 is a wasteful number, since it uses less digits than its factorization.

31368457 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12063.

The product of its digits is 60480, while the sum is 37.

The square root of 31368457 is about 5600.7550383854. The cubic root of 31368457 is about 315.3777512333.

The spelling of 31368457 in words is "thirty-one million, three hundred sixty-eight thousand, four hundred fifty-seven".