45571913 has 4 divisors (see below), whose sum is σ = 45634320. Its totient is φ = 45509508.

The previous prime is 45571909. The next prime is 45571921. The reversal of 45571913 is 31917554.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 45571913 - 2² = 45571909 is a prime.

It is a super-3 number, since 3×45571913³ (a number of 24 digits) contains 333 as substring.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (45571973) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 30095 + ... + 31572.

It is an arithmetic number, because the mean of its divisors is an integer number (11408580).

Almost surely, 2^45571913 is an apocalyptic number.

It is an amenable number.

45571913 is a deficient number, since it is larger than the sum of its proper divisors (62407).

45571913 is an equidigital number, since it uses as much as digits as its factorization.

45571913 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 62406.

The product of its digits is 18900, while the sum is 35.

The square root of 45571913 is about 6750.6972232504. The cubic root of 45571913 is about 357.1898312233.

The spelling of 45571913 in words is "forty-five million, five hundred seventy-one thousand, nine hundred thirteen".