158106281 has 2 divisors, whose sum is σ = 158106282. Its totient is φ = 158106280.

The previous prime is 158106259. The next prime is 158106283. The reversal of 158106281 is 182601851.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 97515625 + 60590656 = 9875^2 + 7784^2 .

It is an emirp because it is prime and its reverse (182601851) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-158106281 is a prime.

It is a super-2 number, since 2×158106281² = 49995192183301922, which contains 22 as substring.

Together with 158106283, 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 (158106283) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 79053140 + 79053141.

It is an arithmetic number, because the mean of its divisors is an integer number (79053141).

Almost surely, 2^158106281 is an apocalyptic number.

It is an amenable number.

158106281 is a deficient number, since it is larger than the sum of its proper divisors (1).

158106281 is an equidigital number, since it uses as much as digits as its factorization.

158106281 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3840, while the sum is 32.

The square root of 158106281 is about 12574.0320104571. The cubic root of 158106281 is about 540.7332072535.

It can be divided in two parts, 15 and 8106281, that multiplied together give a triangular number (121594215 = T₁₅₅₉₄).

The spelling of 158106281 in words is "one hundred fifty-eight million, one hundred six thousand, two hundred eighty-one".