158363261 has 8 divisors (see below), whose sum is σ = 182071680. Its totient is φ = 134926128.

The previous prime is 158363239. The next prime is 158363263. The reversal of 158363261 is 162363851.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 158363261 - 2¹⁸ = 158101117 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (158363263) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 66566 + ... + 68903.

It is an arithmetic number, because the mean of its divisors is an integer number (22758960).

Almost surely, 2^158363261 is an apocalyptic number.

It is an amenable number.

158363261 is a deficient number, since it is larger than the sum of its proper divisors (23708419).

158363261 is a wasteful number, since it uses less digits than its factorization.

158363261 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 135643.

The product of its digits is 25920, while the sum is 35.

The square root of 158363261 is about 12584.2465408144. The cubic root of 158363261 is about 541.0260111428.

The spelling of 158363261 in words is "one hundred fifty-eight million, three hundred sixty-three thousand, two hundred sixty-one".