45169487 has 4 divisors (see below), whose sum is σ = 49275816. Its totient is φ = 41063160.

The previous prime is 45169483. The next prime is 45169519. The reversal of 45169487 is 78496154.

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

It is a cyclic number.

It is not a de Polignac number, because 45169487 - 2² = 45169483 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (45169483) 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, 2053148 + ... + 2053169.

It is an arithmetic number, because the mean of its divisors is an integer number (12318954).

Almost surely, 2^45169487 is an apocalyptic number.

45169487 is a deficient number, since it is larger than the sum of its proper divisors (4106329).

45169487 is a wasteful number, since it uses less digits than its factorization.

45169487 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4106328.

The product of its digits is 241920, while the sum is 44.

The square root of 45169487 is about 6720.8248749688. The cubic root of 45169487 is about 356.1353244528.

The spelling of 45169487 in words is "forty-five million, one hundred sixty-nine thousand, four hundred eighty-seven".