31264045 has 8 divisors (see below), whose sum is σ = 37888920. Its totient is φ = 24763200.

The previous prime is 31264043. The next prime is 31264073. The reversal of 31264045 is 54046213.

It can be written as a sum of positive squares in 4 ways, for example, as 18774889 + 12489156 = 4333^2 + 3534^2 .

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

It is not a de Polignac number, because 31264045 - 2¹ = 31264043 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31264043) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 30450 + ... + 31459.

It is an arithmetic number, because the mean of its divisors is an integer number (4736115).

Almost surely, 2^31264045 is an apocalyptic number.

It is an amenable number.

31264045 is a deficient number, since it is larger than the sum of its proper divisors (6624875).

31264045 is a wasteful number, since it uses less digits than its factorization.

31264045 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 62015.

The product of its (nonzero) digits is 2880, while the sum is 25.

The square root of 31264045 is about 5591.4260256217. The cubic root of 31264045 is about 315.0274436491.

The spelling of 31264045 in words is "thirty-one million, two hundred sixty-four thousand, forty-five".