147891870 has 48 divisors (see below), whose sum is σ = 439452000. Its totient is φ = 33803712.

The previous prime is 147891859. The next prime is 147891883. The reversal of 147891870 is 78198741.

It is a Harshad number since it is a multiple of its sum of digits (45).

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 23 ways as a sum of consecutive naturals, for example, 116745 + ... + 118004.

It is an arithmetic number, because the mean of its divisors is an integer number (9155250).

Almost surely, 2^147891870 is an apocalyptic number.

147891870 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

147891870 is an abundant number, since it is smaller than the sum of its proper divisors (291560130).

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

147891870 is a wasteful number, since it uses less digits than its factorization.

147891870 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 234769 (or 234766 counting only the distinct ones).

The product of its (nonzero) digits is 112896, while the sum is 45.

The square root of 147891870 is about 12161.0801329487. The cubic root of 147891870 is about 528.8283957331.

The spelling of 147891870 in words is "one hundred forty-seven million, eight hundred ninety-one thousand, eight hundred seventy".