158445994 has 8 divisors (see below), whose sum is σ = 271621728. Its totient is φ = 67905420.

The previous prime is 158445983. The next prime is 158446003. The reversal of 158445994 is 499544851.

158445994 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5658772 + ... + 5658799.

It is an arithmetic number, because the mean of its divisors is an integer number (33952716).

Almost surely, 2^158445994 is an apocalyptic number.

158445994 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

158445994 is a deficient number, since it is larger than the sum of its proper divisors (113175734).

158445994 is a wasteful number, since it uses less digits than its factorization.

158445994 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11317580.

The product of its digits is 1036800, while the sum is 49.

The square root of 158445994 is about 12587.5332770166. The cubic root of 158445994 is about 541.1202099956.

The spelling of 158445994 in words is "one hundred fifty-eight million, four hundred forty-five thousand, nine hundred ninety-four".