145557480 has 64 divisors (see below), whose sum is σ = 459662400. Its totient is φ = 36771840.

The previous prime is 145557479. The next prime is 145557487. The reversal of 145557480 is 84755541.

It is a nialpdrome in base 15.

It is not an unprimeable number, because it can be changed into a prime (145557487) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 29641 + ... + 34200.

It is an arithmetic number, because the mean of its divisors is an integer number (7182225).

Almost surely, 2^145557480 is an apocalyptic number.

145557480 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

145557480 is an abundant number, since it is smaller than the sum of its proper divisors (314104920).

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

145557480 is a wasteful number, since it uses less digits than its factorization.

145557480 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 63874 (or 63870 counting only the distinct ones).

The product of its (nonzero) digits is 112000, while the sum is 39.

The square root of 145557480 is about 12064.7204692028. The cubic root of 145557480 is about 526.0312067343.

The spelling of 145557480 in words is "one hundred forty-five million, five hundred fifty-seven thousand, four hundred eighty".