1557347134 has 16 divisors (see below), whose sum is σ = 2671443936. Its totient is φ = 667008000.

The previous prime is 1557347111. The next prime is 1557347137. The reversal of 1557347134 is 4317437551.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1557347137) 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 7 ways as a sum of consecutive naturals, for example, 12327 + ... + 57154.

It is an arithmetic number, because the mean of its divisors is an integer number (166965246).

Almost surely, 2^1557347134 is an apocalyptic number.

1557347134 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

1557347134 is a deficient number, since it is larger than the sum of its proper divisors (1114096802).

1557347134 is a wasteful number, since it uses less digits than its factorization.

1557347134 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 71091.

The product of its digits is 176400, while the sum is 40.

The square root of 1557347134 is about 39463.2377536360. The cubic root of 1557347134 is about 1159.1202043749.

The spelling of 1557347134 in words is "one billion, five hundred fifty-seven million, three hundred forty-seven thousand, one hundred thirty-four".