45312065 has 16 divisors (see below), whose sum is σ = 56684880. Its totient is φ = 34728960.

The previous prime is 45312061. The next prime is 45312073. The reversal of 45312065 is 56021354.

It can be written as a sum of positive squares in 8 ways, for example, as 59536 + 45252529 = 244^2 + 6727^2 .

It is not a de Polignac number, because 45312065 - 2² = 45312061 is a prime.

It is not an unprimeable number, because it can be changed into a prime (45312061) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 18725 + ... + 21005.

It is an arithmetic number, because the mean of its divisors is an integer number (3542805).

Almost surely, 2^45312065 is an apocalyptic number.

It is an amenable number.

45312065 is a deficient number, since it is larger than the sum of its proper divisors (11372815).

45312065 is a wasteful number, since it uses less digits than its factorization.

45312065 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2452.

The product of its (nonzero) digits is 3600, while the sum is 26.

The square root of 45312065 is about 6731.4236978517. The cubic root of 45312065 is about 356.5096459474.

The spelling of 45312065 in words is "forty-five million, three hundred twelve thousand, sixty-five".