158190106 has 4 divisors (see below), whose sum is σ = 237285162. Its totient is φ = 79095052.

The previous prime is 158190101. The next prime is 158190173. The reversal of 158190106 is 601091851.

158190106 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 80838081 + 77352025 = 8991^2 + 8795^2 .

It is not an unprimeable number, because it can be changed into a prime (158190101) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 39547525 + ... + 39547528.

Almost surely, 2^158190106 is an apocalyptic number.

158190106 is a deficient number, since it is larger than the sum of its proper divisors (79095056).

158190106 is an equidigital number, since it uses as much as digits as its factorization.

158190106 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 79095055.

The product of its (nonzero) digits is 2160, while the sum is 31.

The square root of 158190106 is about 12577.3648273396. The cubic root of 158190106 is about 540.8287525889.

The spelling of 158190106 in words is "one hundred fifty-eight million, one hundred ninety thousand, one hundred six".