158920146 has 48 divisors (see below), whose sum is σ = 429294528. Its totient is φ = 41277600.

The previous prime is 158920127. The next prime is 158920159. The reversal of 158920146 is 641029851.

It is a super-2 number, since 2×158920146² = 50511225609322632, which contains 22 as substring.

It is a Smith number, since the sum of its digits (36) coincides with the sum of the digits of its prime factors.

It is a self number, because there is not a number n which added to its sum of digits gives 158920146.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 55945 + ... + 58716.

It is an arithmetic number, because the mean of its divisors is an integer number (8943636).

Almost surely, 2^158920146 is an apocalyptic number.

158920146 is an abundant number, since it is smaller than the sum of its proper divisors (270374382).

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

158920146 is a wasteful number, since it uses less digits than its factorization.

158920146 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 114687 (or 114684 counting only the distinct ones).

The product of its (nonzero) digits is 17280, while the sum is 36.

The square root of 158920146 is about 12606.3533981878. The cubic root of 158920146 is about 541.6594425651.

Adding to 158920146 its reverse (641029851), we get a palindrome (799949997).

The spelling of 158920146 in words is "one hundred fifty-eight million, nine hundred twenty thousand, one hundred forty-six".