45455145 has 32 divisors (see below), whose sum is σ = 76247040. Its totient is φ = 23094720.

The previous prime is 45455143. The next prime is 45455149. The reversal of 45455145 is 54155454.

It is not a de Polignac number, because 45455145 - 2¹ = 45455143 is a prime.

It is not an unprimeable number, because it can be changed into a prime (45455143) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 30426 + ... + 31884.

It is an arithmetic number, because the mean of its divisors is an integer number (2382720).

Almost surely, 2^45455145 is an apocalyptic number.

It is an amenable number.

45455145 is a deficient number, since it is larger than the sum of its proper divisors (30791895).

45455145 is a wasteful number, since it uses less digits than its factorization.

45455145 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1565.

The product of its digits is 40000, while the sum is 33.

The square root of 45455145 is about 6742.0430879667. The cubic root of 45455145 is about 356.8844968402.

The spelling of 45455145 in words is "forty-five million, four hundred fifty-five thousand, one hundred forty-five".