2158186148 has 96 divisors (see below), whose sum is σ = 4180377600. Its totient is φ = 972316800.

The previous prime is 2158186127. The next prime is 2158186171. The reversal of 2158186148 is 8416818512.

It is a junction number, because it is equal to n+sod(n) for n = 2158186099 and 2158186108.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 20169911 + ... + 20170017.

It is an arithmetic number, because the mean of its divisors is an integer number (43545600).

Almost surely, 2^2158186148 is an apocalyptic number.

It is an amenable number.

2158186148 is a deficient number, since it is larger than the sum of its proper divisors (2022191452).

2158186148 is a wasteful number, since it uses less digits than its factorization.

2158186148 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 321 (or 319 counting only the distinct ones).

The product of its digits is 122880, while the sum is 44.

The square root of 2158186148 is about 46456.2821155546. The cubic root of 2158186148 is about 1292.2988769781.

The spelling of 2158186148 in words is "two billion, one hundred fifty-eight million, one hundred eighty-six thousand, one hundred forty-eight".