45019313 has 8 divisors (see below), whose sum is σ = 46280808. Its totient is φ = 43773184.

The previous prime is 45019309. The next prime is 45019327. The reversal of 45019313 is 31391054.

It can be written as a sum of positive squares in 4 ways, for example, as 8392609 + 36626704 = 2897^2 + 6052^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 45019313 - 2² = 45019309 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (45019393) 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, 2231 + ... + 9747.

It is an arithmetic number, because the mean of its divisors is an integer number (5785101).

Almost surely, 2^45019313 is an apocalyptic number.

It is an amenable number.

45019313 is a deficient number, since it is larger than the sum of its proper divisors (1261495).

45019313 is a wasteful number, since it uses less digits than its factorization.

45019313 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7683.

The product of its (nonzero) digits is 1620, while the sum is 26.

The square root of 45019313 is about 6709.6432841098. The cubic root of 45019313 is about 355.7402078234.

The spelling of 45019313 in words is "forty-five million, nineteen thousand, three hundred thirteen".