45383251 has 4 divisors (see below), whose sum is σ = 48052872. Its totient is φ = 42713632.

The previous prime is 45383243. The next prime is 45383257. The reversal of 45383251 is 15238354.

45383251 = T₅₄₉₉ + T₅₅₀₀ + T₅₅₀₁.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 15238354 = 2 ⋅7619177.

It is a cyclic number.

It is not a de Polignac number, because 45383251 - 2³ = 45383243 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (45383257) 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, 1334785 + ... + 1334818.

It is an arithmetic number, because the mean of its divisors is an integer number (12013218).

Almost surely, 2^45383251 is an apocalyptic number.

45383251 is the 5501-st centered triangular number.

45383251 is a deficient number, since it is larger than the sum of its proper divisors (2669621).

45383251 is a wasteful number, since it uses less digits than its factorization.

45383251 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2669620.

The product of its digits is 14400, while the sum is 31.

The square root of 45383251 is about 6736.7092114771. The cubic root of 45383251 is about 356.6962424402.

The spelling of 45383251 in words is "forty-five million, three hundred eighty-three thousand, two hundred fifty-one".