45771155 has 4 divisors (see below), whose sum is σ = 54925392. Its totient is φ = 36616920.

The previous prime is 45771151. The next prime is 45771163. The reversal of 45771155 is 55117754.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 55117754 = 2 ⋅27558877.

It is not a de Polignac number, because 45771155 - 2² = 45771151 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (45771151) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4577111 + ... + 4577120.

It is an arithmetic number, because the mean of its divisors is an integer number (13731348).

Almost surely, 2^45771155 is an apocalyptic number.

45771155 is a deficient number, since it is larger than the sum of its proper divisors (9154237).

45771155 is an equidigital number, since it uses as much as digits as its factorization.

45771155 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9154236.

The product of its digits is 24500, while the sum is 35.

The square root of 45771155 is about 6765.4382710952. The cubic root of 45771155 is about 357.7096232594.

The spelling of 45771155 in words is "forty-five million, seven hundred seventy-one thousand, one hundred fifty-five".