45331919 has 8 divisors (see below), whose sum is σ = 48582240. Its totient is φ = 42188256.

The previous prime is 45331903. The next prime is 45331969. The reversal of 45331919 is 91913354.

45331919 is nontrivially palindromic in base 5.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 45331919 - 2⁴ = 45331903 is a prime.

It is a super-2 number, since 2×45331919² = 4109965760445122, which contains 22 as substring.

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 7 ways as a sum of consecutive naturals, for example, 25784 + ... + 27485.

It is an arithmetic number, because the mean of its divisors is an integer number (6072780).

Almost surely, 2^45331919 is an apocalyptic number.

45331919 is a deficient number, since it is larger than the sum of its proper divisors (3250321).

45331919 is a wasteful number, since it uses less digits than its factorization.

45331919 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 53329.

The product of its digits is 14580, while the sum is 35.

The square root of 45331919 is about 6732.8982615216. The cubic root of 45331919 is about 356.5617079385.

The spelling of 45331919 in words is "forty-five million, three hundred thirty-one thousand, nine hundred nineteen".