31120894 has 8 divisors (see below), whose sum is σ = 53350128. Its totient is φ = 13337520.

The previous prime is 31120891. The next prime is 31120913. The reversal of 31120894 is 49802113.

It is a happy number.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31120891) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1111447 + ... + 1111474.

It is an arithmetic number, because the mean of its divisors is an integer number (6668766).

Almost surely, 2^31120894 is an apocalyptic number.

31120894 is a deficient number, since it is larger than the sum of its proper divisors (22229234).

31120894 is a wasteful number, since it uses less digits than its factorization.

31120894 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2222930.

The product of its (nonzero) digits is 1728, while the sum is 28.

The square root of 31120894 is about 5578.6104004492. The cubic root of 31120894 is about 314.5458947635.

The spelling of 31120894 in words is "thirty-one million, one hundred twenty thousand, eight hundred ninety-four".