45144769 has 4 divisors (see below), whose sum is σ = 46105344. Its totient is φ = 44184196.

The previous prime is 45144767. The next prime is 45144811. The reversal of 45144769 is 96744154.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 45144769 - 2¹ = 45144767 is a prime.

It is a super-2 number, since 2×45144769² = 4076100336126722, which contains 22 as substring.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (45144761) 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, 480217 + ... + 480310.

It is an arithmetic number, because the mean of its divisors is an integer number (11526336).

Almost surely, 2^45144769 is an apocalyptic number.

It is an amenable number.

45144769 is a deficient number, since it is larger than the sum of its proper divisors (960575).

45144769 is an equidigital number, since it uses as much as digits as its factorization.

45144769 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 960574.

The product of its digits is 120960, while the sum is 40.

The square root of 45144769 is about 6718.9857121444. The cubic root of 45144769 is about 356.0703502135.

The spelling of 45144769 in words is "forty-five million, one hundred forty-four thousand, seven hundred sixty-nine".