45140520 has 32 divisors (see below), whose sum is σ = 135421920. Its totient is φ = 12037440.

The previous prime is 45140519. The next prime is 45140573. The reversal of 45140520 is 2504154.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 187966 + ... + 188205.

It is an arithmetic number, because the mean of its divisors is an integer number (4231935).

Almost surely, 2^45140520 is an apocalyptic number.

45140520 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

45140520 is an abundant number, since it is smaller than the sum of its proper divisors (90281400).

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

45140520 is a wasteful number, since it uses less digits than its factorization.

45140520 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 376185 (or 376181 counting only the distinct ones).

The product of its (nonzero) digits is 800, while the sum is 21.

The square root of 45140520 is about 6718.6695111458. The cubic root of 45140520 is about 356.0591788166.

Adding to 45140520 its reverse (2504154), we get a palindrome (47644674).

The spelling of 45140520 in words is "forty-five million, one hundred forty thousand, five hundred twenty".