158180930 has 32 divisors (see below), whose sum is σ = 290807280. Its totient is φ = 61931520.

The previous prime is 158180927. The next prime is 158180951. The reversal of 158180930 is 39081851.

It is a Cunningham number, because it is equal to 12577²+1.

It can be written as a sum of positive squares in 8 ways, for example, as 56957209 + 101223721 = 7547^2 + 10061^2 .

It is a Curzon number.

It is an unprimeable number.

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 in 15 ways as a sum of consecutive naturals, for example, 156266 + ... + 157274.

Almost surely, 2^158180930 is an apocalyptic number.

158180930 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

158180930 is a deficient number, since it is larger than the sum of its proper divisors (132626350).

158180930 is a wasteful number, since it uses less digits than its factorization.

158180930 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1334.

The product of its (nonzero) digits is 8640, while the sum is 35.

The square root of 158180930 is about 12577.0000397551. Note that the first 4 decimals coincide. The cubic root of 158180930 is about 540.8182952544.

The spelling of 158180930 in words is "one hundred fifty-eight million, one hundred eighty thousand, nine hundred thirty".