1587157122 has 16 divisors (see below), whose sum is σ = 3179620800. Its totient is φ = 528167952.

The previous prime is 1587157097. The next prime is 1587157123. The reversal of 1587157122 is 2217517851.

It is not an unprimeable number, because it can be changed into a prime (1587157123) 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 7 ways as a sum of consecutive naturals, for example, 217213 + ... + 224400.

It is an arithmetic number, because the mean of its divisors is an integer number (198726300).

Almost surely, 2^1587157122 is an apocalyptic number.

1587157122 is an abundant number, since it is smaller than the sum of its proper divisors (1592463678).

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

1587157122 is a wasteful number, since it uses less digits than its factorization.

1587157122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 442217.

The product of its digits is 39200, while the sum is 39.

The square root of 1587157122 is about 39839.1405780797. The cubic root of 1587157122 is about 1166.4692844672.

The spelling of 1587157122 in words is "one billion, five hundred eighty-seven million, one hundred fifty-seven thousand, one hundred twenty-two".