45428145 has 48 divisors (see below), whose sum is σ = 89029440. Its totient is φ = 19668096.

The previous prime is 45428137. The next prime is 45428153. The reversal of 45428145 is 54182454.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (45428137) and next prime (45428153).

It is not a de Polignac number, because 45428145 - 2³ = 45428137 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 12339 + ... + 15591.

It is an arithmetic number, because the mean of its divisors is an integer number (1854780).

Almost surely, 2^45428145 is an apocalyptic number.

It is an amenable number.

45428145 is a deficient number, since it is larger than the sum of its proper divisors (43601295).

45428145 is a wasteful number, since it uses less digits than its factorization.

45428145 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3294 (or 3287 counting only the distinct ones).

The product of its digits is 25600, while the sum is 33.

The square root of 45428145 is about 6740.0404301458. The cubic root of 45428145 is about 356.8138206463.

The spelling of 45428145 in words is "forty-five million, four hundred twenty-eight thousand, one hundred forty-five".