156871000 has 128 divisors (see below), whose sum is σ = 431645760. Its totient is φ = 52608000.

The previous prime is 156870983. The next prime is 156871027. The reversal of 156871000 is 178651.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 156871000.

It is a congruent number.

It is an unprimeable number.

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 31 ways as a sum of consecutive naturals, for example, 142452 + ... + 143548.

Almost surely, 2^156871000 is an apocalyptic number.

156871000 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 156871000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (215822880).

156871000 is an abundant number, since it is smaller than the sum of its proper divisors (274774760).

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

156871000 is a wasteful number, since it uses less digits than its factorization.

156871000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1142 (or 1128 counting only the distinct ones).

The product of its (nonzero) digits is 1680, while the sum is 28.

The square root of 156871000 is about 12524.8153679006. The cubic root of 156871000 is about 539.3212780496.

The spelling of 156871000 in words is "one hundred fifty-six million, eight hundred seventy-one thousand".