45473513 has 4 divisors (see below), whose sum is σ = 45496788. Its totient is φ = 45450240.

The previous prime is 45473509. The next prime is 45473531. The reversal of 45473513 is 31537454.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 16711744 + 28761769 = 4088^2 + 5363^2 .

It is a cyclic number.

It is not a de Polignac number, because 45473513 - 2² = 45473509 is a prime.

It is a super-2 number, since 2×45473513² = 4135680769122338, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 45473513.

It is not an unprimeable number, because it can be changed into a prime (45473563) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8408 + ... + 12713.

It is an arithmetic number, because the mean of its divisors is an integer number (11374197).

Almost surely, 2^45473513 is an apocalyptic number.

It is an amenable number.

45473513 is a deficient number, since it is larger than the sum of its proper divisors (23275).

45473513 is a wasteful number, since it uses less digits than its factorization.

45473513 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23274.

The product of its digits is 25200, while the sum is 32.

The square root of 45473513 is about 6743.4051487361. The cubic root of 45473513 is about 356.9325615984.

The spelling of 45473513 in words is "forty-five million, four hundred seventy-three thousand, five hundred thirteen".