45988169 has 4 divisors (see below), whose sum is σ = 46504980. Its totient is φ = 45471360.

The previous prime is 45988139. The next prime is 45988181. The reversal of 45988169 is 96188954.

It is a happy number.

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 11648569 + 34339600 = 3413^2 + 5860^2 .

It is a cyclic number.

It is not a de Polignac number, because 45988169 - 2²⁰ = 44939593 is a prime.

It is a super-2 number, since 2×45988169² = 4229823375945122, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (45988139) 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, 258272 + ... + 258449.

It is an arithmetic number, because the mean of its divisors is an integer number (11626245).

Almost surely, 2^45988169 is an apocalyptic number.

It is an amenable number.

45988169 is a deficient number, since it is larger than the sum of its proper divisors (516811).

45988169 is an equidigital number, since it uses as much as digits as its factorization.

45988169 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 516810.

The product of its digits is 622080, while the sum is 50.

The square root of 45988169 is about 6781.4577341454. The cubic root of 45988169 is about 358.2740663232.

The spelling of 45988169 in words is "forty-five million, nine hundred eighty-eight thousand, one hundred sixty-nine".