31357094 has 4 divisors (see below), whose sum is σ = 47035644. Its totient is φ = 15678546.

The previous prime is 31357069. The next prime is 31357097. The reversal of 31357094 is 49075313.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a self number, because there is not a number n which added to its sum of digits gives 31357094.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31357097) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7839272 + ... + 7839275.

It is an arithmetic number, because the mean of its divisors is an integer number (11758911).

Almost surely, 2^31357094 is an apocalyptic number.

31357094 is a deficient number, since it is larger than the sum of its proper divisors (15678550).

31357094 is a wasteful number, since it uses less digits than its factorization.

31357094 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15678549.

The product of its (nonzero) digits is 11340, while the sum is 32.

The square root of 31357094 is about 5599.7405297031. The cubic root of 31357094 is about 315.3396655199.

The spelling of 31357094 in words is "thirty-one million, three hundred fifty-seven thousand, ninety-four".