158361146 has 4 divisors (see below), whose sum is σ = 237541722. Its totient is φ = 79180572.

The previous prime is 158361139. The next prime is 158361149. The reversal of 158361146 is 641163851.

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., 156525121 + 1836025 = 12511^2 + 1355^2 .

It is not an unprimeable number, because it can be changed into a prime (158361149) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 39590285 + ... + 39590288.

Almost surely, 2^158361146 is an apocalyptic number.

158361146 is a deficient number, since it is larger than the sum of its proper divisors (79180576).

158361146 is an equidigital number, since it uses as much as digits as its factorization.

158361146 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 79180575.

The product of its digits is 17280, while the sum is 35.

The square root of 158361146 is about 12584.1625068973. The cubic root of 158361146 is about 541.0236025979.

The spelling of 158361146 in words is "one hundred fifty-eight million, three hundred sixty-one thousand, one hundred forty-six".