158431103 has 8 divisors (see below), whose sum is σ = 161710080. Its totient is φ = 155184120.

The previous prime is 158431087. The next prime is 158431123. The reversal of 158431103 is 301134851.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 158431103 - 2⁴ = 158431087 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (158431123) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2138 + ... + 17928.

It is an arithmetic number, because the mean of its divisors is an integer number (20213760).

Almost surely, 2^158431103 is an apocalyptic number.

158431103 is a deficient number, since it is larger than the sum of its proper divisors (3278977).

158431103 is a wasteful number, since it uses less digits than its factorization.

158431103 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15997.

The product of its (nonzero) digits is 1440, while the sum is 26.

The square root of 158431103 is about 12586.9417651787. The cubic root of 158431103 is about 541.1032576927.

Adding to 158431103 its reverse (301134851), we get a palindrome (459565954).

The spelling of 158431103 in words is "one hundred fifty-eight million, four hundred thirty-one thousand, one hundred three".