31774045 has 16 divisors (see below), whose sum is σ = 38815920. Its totient is φ = 24966144.

The previous prime is 31774019. The next prime is 31774049. The reversal of 31774045 is 54047713.

It can be written as a sum of positive squares in 8 ways, for example, as 715716 + 31058329 = 846^2 + 5573^2 .

It is a cyclic number.

It is not a de Polignac number, because 31774045 - 2¹⁵ = 31741277 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 31773998 and 31774016.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31774049) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 94117 + ... + 94453.

It is an arithmetic number, because the mean of its divisors is an integer number (2425995).

Almost surely, 2^31774045 is an apocalyptic number.

It is an amenable number.

31774045 is a deficient number, since it is larger than the sum of its proper divisors (7041875).

31774045 is a wasteful number, since it uses less digits than its factorization.

31774045 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 624.

The product of its (nonzero) digits is 11760, while the sum is 31.

The square root of 31774045 is about 5636.8470797069. The cubic root of 31774045 is about 316.7311921450.

The spelling of 31774045 in words is "thirty-one million, seven hundred seventy-four thousand, forty-five".