45455091 has 8 divisors (see below), whose sum is σ = 66116544. Its totient is φ = 27548520.

The previous prime is 45455089. The next prime is 45455117. The reversal of 45455091 is 19055454.

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

It is not a de Polignac number, because 45455091 - 2¹ = 45455089 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (33), and also a Moran number because the ratio is a prime number: 1377427 = 45455091 / (4 + 5 + 4 + 5 + 5 + 0 + 9 + 1).

It is not an unprimeable number, because it can be changed into a prime (45455051) 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, 688681 + ... + 688746.

It is an arithmetic number, because the mean of its divisors is an integer number (8264568).

Almost surely, 2^45455091 is an apocalyptic number.

45455091 is a deficient number, since it is larger than the sum of its proper divisors (20661453).

45455091 is a wasteful number, since it uses less digits than its factorization.

45455091 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1377441.

The product of its (nonzero) digits is 18000, while the sum is 33.

The square root of 45455091 is about 6742.0390832448. The cubic root of 45455091 is about 356.8843555157.

The spelling of 45455091 in words is "forty-five million, four hundred fifty-five thousand, ninety-one".