45331949 has 4 divisors (see below), whose sum is σ = 48819036. Its totient is φ = 41844864.

The previous prime is 45331903. The next prime is 45331969. The reversal of 45331949 is 94913354.

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

It can be written as a sum of positive squares in 2 ways, for example, as 4141225 + 41190724 = 2035^2 + 6418^2 .

It is a cyclic number.

It is not a de Polignac number, because 45331949 - 2²⁴ = 28554733 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 (45331969) 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, 1743524 + ... + 1743549.

It is an arithmetic number, because the mean of its divisors is an integer number (12204759).

Almost surely, 2^45331949 is an apocalyptic number.

It is an amenable number.

45331949 is a deficient number, since it is larger than the sum of its proper divisors (3487087).

45331949 is a wasteful number, since it uses less digits than its factorization.

45331949 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3487086.

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

The square root of 45331949 is about 6732.9004893879. The cubic root of 45331949 is about 356.5617865943.

The spelling of 45331949 in words is "forty-five million, three hundred thirty-one thousand, nine hundred forty-nine".