158828123 has 4 divisors (see below), whose sum is σ = 161198760. Its totient is φ = 156457488.

The previous prime is 158828119. The next prime is 158828129. The reversal of 158828123 is 321828851.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 321828851 = 193 ⋅1667507.

It is a cyclic number.

It is not a de Polignac number, because 158828123 - 2² = 158828119 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (158828129) 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, 1185218 + ... + 1185351.

It is an arithmetic number, because the mean of its divisors is an integer number (40299690).

Almost surely, 2^158828123 is an apocalyptic number.

158828123 is a deficient number, since it is larger than the sum of its proper divisors (2370637).

158828123 is an equidigital number, since it uses as much as digits as its factorization.

158828123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2370636.

The product of its digits is 30720, while the sum is 38.

The square root of 158828123 is about 12602.7030037211. The cubic root of 158828123 is about 541.5548727497.

The spelling of 158828123 in words is "one hundred fifty-eight million, eight hundred twenty-eight thousand, one hundred twenty-three".