158190028 has 6 divisors (see below), whose sum is σ = 276832556. Its totient is φ = 79095012.

The previous prime is 158189971. The next prime is 158190047. The reversal of 158190028 is 820091851.

It is a junction number, because it is equal to n+sod(n) for n = 158189975 and 158190002.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 19773750 + ... + 19773757.

Almost surely, 2^158190028 is an apocalyptic number.

It is an amenable number.

158190028 is a deficient number, since it is larger than the sum of its proper divisors (118642528).

158190028 is a wasteful number, since it uses less digits than its factorization.

158190028 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39547511 (or 39547509 counting only the distinct ones).

The product of its (nonzero) digits is 5760, while the sum is 34.

The square root of 158190028 is about 12577.3617265307. The cubic root of 158190028 is about 540.8286636987.

The spelling of 158190028 in words is "one hundred fifty-eight million, one hundred ninety thousand, twenty-eight".