158043874 has 4 divisors (see below), whose sum is σ = 237065814. Its totient is φ = 79021936.

The previous prime is 158043871. The next prime is 158043887. The reversal of 158043874 is 478340851.

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

It can be written as a sum of positive squares in only one way, i.e., 118265625 + 39778249 = 10875^2 + 6307^2 .

It is a super-2 number, since 2×158043874² = 49955732217855752, 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 not an unprimeable number, because it can be changed into a prime (158043871) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 39510967 + ... + 39510970.

Almost surely, 2^158043874 is an apocalyptic number.

158043874 is a deficient number, since it is larger than the sum of its proper divisors (79021940).

158043874 is an equidigital number, since it uses as much as digits as its factorization.

158043874 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 79021939.

The product of its (nonzero) digits is 107520, while the sum is 40.

The square root of 158043874 is about 12571.5501828533. The cubic root of 158043874 is about 540.6620526310.

It can be divided in two parts, 1580 and 43874, that added together give a palindrome (45454).

The spelling of 158043874 in words is "one hundred fifty-eight million, forty-three thousand, eight hundred seventy-four".