45109618 has 4 divisors (see below), whose sum is σ = 67664430. Its totient is φ = 22554808.

The previous prime is 45109523. The next prime is 45109639. The reversal of 45109618 is 81690154.

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

It can be written as a sum of positive squares in only one way, i.e., 38229489 + 6880129 = 6183^2 + 2623^2 .

It is a super-2 number, since 2×45109618² = 4069755272211848, which contains 22 as substring.

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 11277403 + ... + 11277406.

Almost surely, 2^45109618 is an apocalyptic number.

45109618 is a deficient number, since it is larger than the sum of its proper divisors (22554812).

45109618 is a wasteful number, since it uses less digits than its factorization.

45109618 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22554811.

The product of its (nonzero) digits is 8640, while the sum is 34.

The square root of 45109618 is about 6716.3694061598. The cubic root of 45109618 is about 355.9779107196.

The spelling of 45109618 in words is "forty-five million, one hundred nine thousand, six hundred eighteen".