158194870 has 16 divisors (see below), whose sum is σ = 285126768. Its totient is φ = 63194400.

The previous prime is 158194867. The next prime is 158194873. The reversal of 158194870 is 78491851.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (158194867) and next prime (158194873).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (158194873) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2181 + ... + 17920.

It is an arithmetic number, because the mean of its divisors is an integer number (17820423).

Almost surely, 2^158194870 is an apocalyptic number.

158194870 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

158194870 is a deficient number, since it is larger than the sum of its proper divisors (126931898).

158194870 is a wasteful number, since it uses less digits than its factorization.

158194870 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20895.

The product of its (nonzero) digits is 80640, while the sum is 43.

The square root of 158194870 is about 12577.5542137571. The cubic root of 158194870 is about 540.8341816733.

The spelling of 158194870 in words is "one hundred fifty-eight million, one hundred ninety-four thousand, eight hundred seventy".