45159819 has 16 divisors (see below), whose sum is σ = 61885824. Its totient is φ = 29275200.

The previous prime is 45159739. The next prime is 45159857. The reversal of 45159819 is 91895154.

It is not a de Polignac number, because 45159819 - 2⁷ = 45159691 is a prime.

It is a super-2 number, since 2×45159819² = 4078818504225522, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (45152819) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 69912 + ... + 70554.

It is an arithmetic number, because the mean of its divisors is an integer number (3867864).

Almost surely, 2^45159819 is an apocalyptic number.

45159819 is a deficient number, since it is larger than the sum of its proper divisors (16726005).

45159819 is a wasteful number, since it uses less digits than its factorization.

45159819 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1258.

The product of its digits is 64800, while the sum is 42.

The square root of 45159819 is about 6720.1055795278. The cubic root of 45159819 is about 356.1099137738.

The spelling of 45159819 in words is "forty-five million, one hundred fifty-nine thousand, eight hundred nineteen".