45147091 has 8 divisors (see below), whose sum is σ = 51393024. Its totient is φ = 39258120.

The previous prime is 45147073. The next prime is 45147107. The reversal of 45147091 is 19074154.

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

It is not a de Polignac number, because 45147091 - 2⁷ = 45146963 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (45147031) 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, 88971 + ... + 89476.

It is an arithmetic number, because the mean of its divisors is an integer number (6424128).

Almost surely, 2^45147091 is an apocalyptic number.

45147091 is a deficient number, since it is larger than the sum of its proper divisors (6245933).

45147091 is a wasteful number, since it uses less digits than its factorization.

45147091 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 178481.

The product of its (nonzero) digits is 5040, while the sum is 31.

The square root of 45147091 is about 6719.1585038604. The cubic root of 45147091 is about 356.0764548792.

The spelling of 45147091 in words is "forty-five million, one hundred forty-seven thousand, ninety-one".