45931493 has 4 divisors (see below), whose sum is σ = 48348960. Its totient is φ = 43514028.

The previous prime is 45931471. The next prime is 45931499. The reversal of 45931493 is 39413954.

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 de Polignac number, because none of the positive numbers 2^k-45931493 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (45931499) 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, 1208705 + ... + 1208742.

It is an arithmetic number, because the mean of its divisors is an integer number (12087240).

Almost surely, 2^45931493 is an apocalyptic number.

It is an amenable number.

45931493 is a deficient number, since it is larger than the sum of its proper divisors (2417467).

45931493 is a wasteful number, since it uses less digits than its factorization.

45931493 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2417466.

The product of its digits is 58320, while the sum is 38.

The square root of 45931493 is about 6777.2776983093. The cubic root of 45931493 is about 358.1268263650.

The spelling of 45931493 in words is "forty-five million, nine hundred thirty-one thousand, four hundred ninety-three".