45023619 has 8 divisors (see below), whose sum is σ = 60343312. Its totient is φ = 29859840.

The previous prime is 45023611. The next prime is 45023621. The reversal of 45023619 is 91632054.

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

It is not a de Polignac number, because 45023619 - 2³ = 45023611 is a prime.

It is a super-2 number, since 2×45023619² = 4054252535714322, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (45023611) 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 7 ways as a sum of consecutive naturals, for example, 38302 + ... + 39459.

It is an arithmetic number, because the mean of its divisors is an integer number (7542914).

Almost surely, 2^45023619 is an apocalyptic number.

45023619 is a deficient number, since it is larger than the sum of its proper divisors (15319693).

45023619 is a wasteful number, since it uses less digits than its factorization.

45023619 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 77957.

The product of its (nonzero) digits is 6480, while the sum is 30.

The square root of 45023619 is about 6709.9641578774. The cubic root of 45023619 is about 355.7515493891.

The spelling of 45023619 in words is "forty-five million, twenty-three thousand, six hundred nineteen".