45131155 has 16 divisors (see below), whose sum is σ = 55826784. Its totient is φ = 35009280.

The previous prime is 45131147. The next prime is 45131159. The reversal of 45131155 is 55113154.

It is a happy number.

It is not a de Polignac number, because 45131155 - 2³ = 45131147 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (45131159) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 21252 + ... + 23278.

It is an arithmetic number, because the mean of its divisors is an integer number (3489174).

Almost surely, 2^45131155 is an apocalyptic number.

45131155 is a deficient number, since it is larger than the sum of its proper divisors (10695629).

45131155 is a wasteful number, since it uses less digits than its factorization.

45131155 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2166.

The product of its digits is 1500, while the sum is 25.

The square root of 45131155 is about 6717.9725364131. The cubic root of 45131155 is about 356.0345540462.

The spelling of 45131155 in words is "forty-five million, one hundred thirty-one thousand, one hundred fifty-five".