45151591 has 8 divisors (see below), whose sum is σ = 46403984. Its totient is φ = 43908480.

The previous prime is 45151583. The next prime is 45151607. The reversal of 45151591 is 19515154.

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 45151591 - 2³ = 45151583 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 (45151091) 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, 8185 + ... + 12541.

It is an arithmetic number, because the mean of its divisors is an integer number (5800498).

Almost surely, 2^45151591 is an apocalyptic number.

45151591 is a deficient number, since it is larger than the sum of its proper divisors (1252393).

45151591 is a wasteful number, since it uses less digits than its factorization.

45151591 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4641.

The product of its digits is 4500, while the sum is 31.

The square root of 45151591 is about 6719.4933588776. The cubic root of 45151591 is about 356.0882850310.

The spelling of 45151591 in words is "forty-five million, one hundred fifty-one thousand, five hundred ninety-one".