45249983 has 4 divisors (see below), whose sum is σ = 45991848. Its totient is φ = 44508120.

The previous prime is 45249949. The next prime is 45249989. The reversal of 45249983 is 38994254.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 45249983 - 2⁸ = 45249727 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 (45249989) 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, 370841 + ... + 370962.

It is an arithmetic number, because the mean of its divisors is an integer number (11497962).

Almost surely, 2^45249983 is an apocalyptic number.

45249983 is a deficient number, since it is larger than the sum of its proper divisors (741865).

45249983 is an equidigital number, since it uses as much as digits as its factorization.

45249983 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 741864.

The product of its digits is 311040, while the sum is 44.

The square root of 45249983 is about 6726.8107599367. The cubic root of 45249983 is about 356.3467537347.

The spelling of 45249983 in words is "forty-five million, two hundred forty-nine thousand, nine hundred eighty-three".