45031351 has 4 divisors (see below), whose sum is σ = 47680272. Its totient is φ = 42382432.

The previous prime is 45031333. The next prime is 45031361. The reversal of 45031351 is 15313054.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 15313054 = 2 ⋅7656527.

It is a cyclic number.

It is not a de Polignac number, because 45031351 - 2⁷ = 45031223 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 (45031321) 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, 1324435 + ... + 1324468.

It is an arithmetic number, because the mean of its divisors is an integer number (11920068).

Almost surely, 2^45031351 is an apocalyptic number.

45031351 is a deficient number, since it is larger than the sum of its proper divisors (2648921).

45031351 is a wasteful number, since it uses less digits than its factorization.

45031351 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2648920.

The product of its (nonzero) digits is 900, while the sum is 22.

The square root of 45031351 is about 6710.5402912135. The cubic root of 45031351 is about 355.7719128754.

The spelling of 45031351 in words is "forty-five million, thirty-one thousand, three hundred fifty-one".