158029197 has 4 divisors (see below), whose sum is σ = 210705600. Its totient is φ = 105352796.

The previous prime is 158029189. The next prime is 158029237. The reversal of 158029197 is 791920851.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 158029197 - 2³ = 158029189 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (158029117) 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, 26338197 + ... + 26338202.

It is an arithmetic number, because the mean of its divisors is an integer number (52676400).

Almost surely, 2^158029197 is an apocalyptic number.

It is an amenable number.

158029197 is a deficient number, since it is larger than the sum of its proper divisors (52676403).

158029197 is an equidigital number, since it uses as much as digits as its factorization.

158029197 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 52676402.

The product of its (nonzero) digits is 45360, while the sum is 42.

The square root of 158029197 is about 12570.9664306290. The cubic root of 158029197 is about 540.6453156276.

The spelling of 158029197 in words is "one hundred fifty-eight million, twenty-nine thousand, one hundred ninety-seven".