45127091 has 4 divisors (see below), whose sum is σ = 45698400. Its totient is φ = 44555784.

The previous prime is 45127079. The next prime is 45127099. The reversal of 45127091 is 19072154.

45127091 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 19072154 = 2 ⋅9536077.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-45127091 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (45127099) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 285536 + ... + 285693.

It is an arithmetic number, because the mean of its divisors is an integer number (11424600).

Almost surely, 2^45127091 is an apocalyptic number.

45127091 is a deficient number, since it is larger than the sum of its proper divisors (571309).

45127091 is an equidigital number, since it uses as much as digits as its factorization.

45127091 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 571308.

The product of its (nonzero) digits is 2520, while the sum is 29.

The square root of 45127091 is about 6717.6700573934. The cubic root of 45127091 is about 356.0238669140.

The spelling of 45127091 in words is "forty-five million, one hundred twenty-seven thousand, ninety-one".