45144961 has 3 divisors (see below), whose sum is σ = 45151681. Its totient is φ = 45138242.

The previous prime is 45144947. The next prime is 45144997. The reversal of 45144961 is 16944154.

It is a happy number.

The square root of 45144961 is 6719.

It is a perfect power (a square), and thus also a powerful number.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is not a de Polignac number, because 45144961 - 2²³ = 36756353 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (45144901) by changing a digit.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 3360 + ... + 10078.

Almost surely, 2^45144961 is an apocalyptic number.

45144961 is the 6719-th square number.

45144961 is the 3360-th centered octagonal number.

It is an amenable number.

45144961 is a deficient number, since it is larger than the sum of its proper divisors (6720).

45144961 is an frugal number, since it uses more digits than its factorization.

45144961 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13438 (or 6719 counting only the distinct ones).

The product of its digits is 17280, while the sum is 34.

The cubic root of 45144961 is about 356.0708550000.

The spelling of 45144961 in words is "forty-five million, one hundred forty-four thousand, nine hundred sixty-one".