45115493 has 4 divisors (see below), whose sum is σ = 45295488. Its totient is φ = 44935500.

The previous prime is 45115463. The next prime is 45115513. The reversal of 45115493 is 39451154.

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 cyclic number.

It is not a de Polignac number, because 45115493 - 2⁶ = 45115429 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 (45115463) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 89621 + ... + 90122.

It is an arithmetic number, because the mean of its divisors is an integer number (11323872).

Almost surely, 2^45115493 is an apocalyptic number.

It is an amenable number.

45115493 is a deficient number, since it is larger than the sum of its proper divisors (179995).

45115493 is a wasteful number, since it uses less digits than its factorization.

45115493 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 179994.

The product of its digits is 10800, while the sum is 32.

The square root of 45115493 is about 6716.8067561900. The cubic root of 45115493 is about 355.9933640349.

The spelling of 45115493 in words is "forty-five million, one hundred fifteen thousand, four hundred ninety-three".