158153861 has 2 divisors, whose sum is σ = 158153862. Its totient is φ = 158153860.

The previous prime is 158153833. The next prime is 158153869. The reversal of 158153861 is 168351851.

It is a happy number.

158153861 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 109851361 + 48302500 = 10481^2 + 6950^2 .

It is an emirp because it is prime and its reverse (168351851) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 158153861 - 2⁶ = 158153797 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (158153869) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 79076930 + 79076931.

It is an arithmetic number, because the mean of its divisors is an integer number (79076931).

Almost surely, 2^158153861 is an apocalyptic number.

It is an amenable number.

158153861 is a deficient number, since it is larger than the sum of its proper divisors (1).

158153861 is an equidigital number, since it uses as much as digits as its factorization.

158153861 is an evil number, because the sum of its binary digits is even.

The product of its digits is 28800, while the sum is 38.

The square root of 158153861 is about 12575.9238626830. The cubic root of 158153861 is about 540.7874439889.

The spelling of 158153861 in words is "one hundred fifty-eight million, one hundred fifty-three thousand, eight hundred sixty-one".