158073169 has 4 divisors (see below), whose sum is σ = 158124196. Its totient is φ = 158022144.

The previous prime is 158073161. The next prime is 158073199. The reversal of 158073169 is 961370851.

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

It can be written as a sum of positive squares in 2 ways, for example, as 82174225 + 75898944 = 9065^2 + 8712^2 .

It is a cyclic number.

It is not a de Polignac number, because 158073169 - 2³ = 158073161 is a prime.

It is a super-2 number, since 2×158073169² = 49974253515405122, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (158073161) 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, 20544 + ... + 27169.

It is an arithmetic number, because the mean of its divisors is an integer number (39531049).

Almost surely, 2^158073169 is an apocalyptic number.

It is an amenable number.

158073169 is a deficient number, since it is larger than the sum of its proper divisors (51027).

158073169 is an equidigital number, since it uses as much as digits as its factorization.

158073169 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 51026.

The product of its (nonzero) digits is 45360, while the sum is 40.

The square root of 158073169 is about 12572.7152596406. The cubic root of 158073169 is about 540.6954562590.

The spelling of 158073169 in words is "one hundred fifty-eight million, seventy-three thousand, one hundred sixty-nine".