158835881 has 2 divisors, whose sum is σ = 158835882. Its totient is φ = 158835880.

The previous prime is 158835863. The next prime is 158835883. The reversal of 158835881 is 188538851.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 107226025 + 51609856 = 10355^2 + 7184^2 .

It is an emirp because it is prime and its reverse (188538851) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 158835881 - 2¹⁰ = 158834857 is a prime.

It is a super-2 number, since 2×158835881² = 50457674186092322, which contains 22 as substring.

Together with 158835883, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (158835883) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 79417940 + 79417941.

It is an arithmetic number, because the mean of its divisors is an integer number (79417941).

Almost surely, 2^158835881 is an apocalyptic number.

It is an amenable number.

158835881 is a deficient number, since it is larger than the sum of its proper divisors (1).

158835881 is an equidigital number, since it uses as much as digits as its factorization.

158835881 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 307200, while the sum is 47.

The square root of 158835881 is about 12603.0107910769. The cubic root of 158835881 is about 541.5636900679.

The spelling of 158835881 in words is "one hundred fifty-eight million, eight hundred thirty-five thousand, eight hundred eighty-one".