2158287146 has 8 divisors (see below), whose sum is σ = 3341864064. Its totient is φ = 1044332460.

The previous prime is 2158287143. The next prime is 2158287163. The reversal of 2158287146 is 6417828512.

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

It is a junction number, because it is equal to n+sod(n) for n = 2158287097 and 2158287106.

It is not an unprimeable number, because it can be changed into a prime (2158287143) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 17405480 + ... + 17405603.

It is an arithmetic number, because the mean of its divisors is an integer number (417733008).

Almost surely, 2^2158287146 is an apocalyptic number.

2158287146 is a deficient number, since it is larger than the sum of its proper divisors (1183576918).

2158287146 is a wasteful number, since it uses less digits than its factorization.

2158287146 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34811116.

The product of its digits is 215040, while the sum is 44.

The square root of 2158287146 is about 46457.3691248224. The cubic root of 2158287146 is about 1292.3190355059.

The spelling of 2158287146 in words is "two billion, one hundred fifty-eight million, two hundred eighty-seven thousand, one hundred forty-six".