1557241100 has 36 divisors (see below), whose sum is σ = 3381882504. Its totient is φ = 622404480.

The previous prime is 1557241079. The next prime is 1557241193. The reversal of 1557241100 is 11427551.

1557241100 is digitally balanced in base 6, because in such base it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 1557241100.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 137867 + ... + 148733.

Almost surely, 2^1557241100 is an apocalyptic number.

1557241100 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1557241100 is an abundant number, since it is smaller than the sum of its proper divisors (1824641404).

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

1557241100 is a wasteful number, since it uses less digits than its factorization.

1557241100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12314 (or 12307 counting only the distinct ones).

The product of its (nonzero) digits is 1400, while the sum is 26.

The square root of 1557241100 is about 39461.8942778980. The cubic root of 1557241100 is about 1159.0938970435.

Adding to 1557241100 its reverse (11427551), we get a palindrome (1568668651).

The spelling of 1557241100 in words is "one billion, five hundred fifty-seven million, two hundred forty-one thousand, one hundred".