45531145020 has 24 divisors (see below), whose sum is σ = 127487206224. Its totient is φ = 12141638656.

The previous prime is 45531145013. The next prime is 45531145027. The reversal of 45531145020 is 2054113554.

It is an interprime number because it is at equal distance from previous prime (45531145013) and next prime (45531145027).

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (45531145027) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 379426149 + ... + 379426268.

It is an arithmetic number, because the mean of its divisors is an integer number (5311966926).

Almost surely, 2^45531145020 is an apocalyptic number.

It is an amenable number.

45531145020 is an abundant number, since it is smaller than the sum of its proper divisors (81956061204).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

45531145020 is a wasteful number, since it uses less digits than its factorization.

45531145020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 758852429 (or 758852427 counting only the distinct ones).

The product of its (nonzero) digits is 12000, while the sum is 30.

Adding to 45531145020 its reverse (2054113554), we get a palindrome (47585258574).

The spelling of 45531145020 in words is "forty-five billion, five hundred thirty-one million, one hundred forty-five thousand, twenty".