1557134500 has 48 divisors (see below), whose sum is σ = 3548668032. Its totient is φ = 595768800.

The previous prime is 1557134479. The next prime is 1557134503. The reversal of 1557134500 is 54317551.

It is not an unprimeable number, because it can be changed into a prime (1557134503) 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 15 ways as a sum of consecutive naturals, for example, 56202 + ... + 79201.

It is an arithmetic number, because the mean of its divisors is an integer number (73930584).

Almost surely, 2^1557134500 is an apocalyptic number.

1557134500 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1557134500 is an abundant number, since it is smaller than the sum of its proper divisors (1991533532).

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

1557134500 is a wasteful number, since it uses less digits than its factorization.

1557134500 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 135445 (or 135433 counting only the distinct ones).

The product of its (nonzero) digits is 10500, while the sum is 31.

The square root of 1557134500 is about 39460.5435846999. The cubic root of 1557134500 is about 1159.0674480822.

The spelling of 1557134500 in words is "one billion, five hundred fifty-seven million, one hundred thirty-four thousand, five hundred".