1487105857 has 8 divisors (see below), whose sum is σ = 1502103680. Its totient is φ = 1472132880.

The previous prime is 1487105827. The next prime is 1487105869. The reversal of 1487105857 is 7585017841.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1487105857 - 2⁷ = 1487105729 is a prime.

It is a super-2 number, since 2×1487105857² = 4422967659847408898, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1487105827) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 128638 + ... + 139720.

It is an arithmetic number, because the mean of its divisors is an integer number (187762960).

Almost surely, 2^1487105857 is an apocalyptic number.

It is an amenable number.

1487105857 is a deficient number, since it is larger than the sum of its proper divisors (14997823).

1487105857 is a wasteful number, since it uses less digits than its factorization.

1487105857 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12423.

The product of its (nonzero) digits is 313600, while the sum is 46.

The square root of 1487105857 is about 38563.0115136253. The cubic root of 1487105857 is about 1141.4247746912.

The spelling of 1487105857 in words is "one billion, four hundred eighty-seven million, one hundred five thousand, eight hundred fifty-seven".