145557486 has 24 divisors (see below), whose sum is σ = 327056184. Its totient is φ = 48519000.

The previous prime is 145557479. The next prime is 145557487. The reversal of 145557486 is 684755541.

145557486 is a `hidden beast` number, since 14 + 5 + 557 + 4 + 86 = 666.

It is a Curzon number.

It is a congruent number.

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

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 149265 + ... + 150236.

It is an arithmetic number, because the mean of its divisors is an integer number (13627341).

Almost surely, 2^145557486 is an apocalyptic number.

145557486 is an abundant number, since it is smaller than the sum of its proper divisors (181498698).

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

145557486 is an equidigital number, since it uses as much as digits as its factorization.

145557486 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 299518 (or 299506 counting only the distinct ones).

The product of its digits is 672000, while the sum is 45.

The square root of 145557486 is about 12064.7207178616. The cubic root of 145557486 is about 526.0312139621.

The spelling of 145557486 in words is "one hundred forty-five million, five hundred fifty-seven thousand, four hundred eighty-six".