45289321 has 8 divisors (see below), whose sum is σ = 56464704. Its totient is φ = 35290320.

The previous prime is 45289301. The next prime is 45289351. The reversal of 45289321 is 12398254.

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

It is a cyclic number.

It is not a de Polignac number, because 45289321 - 2⁵ = 45289289 is a prime.

It is a super-2 number, since 2×45289321² = 4102245193282082, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (45289301) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 294010 + ... + 294163.

It is an arithmetic number, because the mean of its divisors is an integer number (7058088).

Almost surely, 2^45289321 is an apocalyptic number.

It is an amenable number.

45289321 is a deficient number, since it is larger than the sum of its proper divisors (11175383).

45289321 is a wasteful number, since it uses less digits than its factorization.

45289321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 588191.

The product of its digits is 17280, while the sum is 34.

The square root of 45289321 is about 6729.7340957871. The cubic root of 45289321 is about 356.4499869845.

The spelling of 45289321 in words is "forty-five million, two hundred eighty-nine thousand, three hundred twenty-one".