45346391 has 4 divisors (see below), whose sum is σ = 45369984. Its totient is φ = 45322800.

The previous prime is 45346339. The next prime is 45346393. The reversal of 45346391 is 19364354.

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: 19364354 = 2 ⋅9682177.

It is a cyclic number.

It is not a de Polignac number, because 45346391 - 2¹⁰ = 45345367 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 (45346393) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8630 + ... + 12851.

It is an arithmetic number, because the mean of its divisors is an integer number (11342496).

Almost surely, 2^45346391 is an apocalyptic number.

45346391 is a deficient number, since it is larger than the sum of its proper divisors (23593).

45346391 is a wasteful number, since it uses less digits than its factorization.

45346391 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23592.

The product of its digits is 38880, while the sum is 35.

The square root of 45346391 is about 6733.9728986684. The cubic root of 45346391 is about 356.5996474458.

The spelling of 45346391 in words is "forty-five million, three hundred forty-six thousand, three hundred ninety-one".