158019349 has 4 divisors (see below), whose sum is σ = 158165280. Its totient is φ = 157873420.

The previous prime is 158019343. The next prime is 158019353. The reversal of 158019349 is 943910851.

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 158019349 - 2⁵ = 158019317 is a prime.

It is a super-2 number, since 2×158019349² = 49940229316767602, which contains 22 as substring.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (158019343) 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, 71329 + ... + 73510.

It is an arithmetic number, because the mean of its divisors is an integer number (39541320).

Almost surely, 2^158019349 is an apocalyptic number.

It is an amenable number.

158019349 is a deficient number, since it is larger than the sum of its proper divisors (145931).

158019349 is a wasteful number, since it uses less digits than its factorization.

158019349 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 145930.

The product of its (nonzero) digits is 38880, while the sum is 40.

The square root of 158019349 is about 12570.5747283090. The cubic root of 158019349 is about 540.6340848218.

The spelling of 158019349 in words is "one hundred fifty-eight million, nineteen thousand, three hundred forty-nine".