158641291 has 8 divisors (see below), whose sum is σ = 163933568. Its totient is φ = 153360000.

The previous prime is 158641289. The next prime is 158641313. The reversal of 158641291 is 192146851.

158641291 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 158641291 - 2¹ = 158641289 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 158641291.

It is not an unprimeable number, because it can be changed into a prime (158641201) 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, 35101 + ... + 39361.

It is an arithmetic number, because the mean of its divisors is an integer number (20491696).

Almost surely, 2^158641291 is an apocalyptic number.

158641291 is a deficient number, since it is larger than the sum of its proper divisors (5292277).

158641291 is a wasteful number, since it uses less digits than its factorization.

158641291 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5493.

The product of its digits is 17280, while the sum is 37.

The square root of 158641291 is about 12595.2884444938. The cubic root of 158641291 is about 541.3424429501.

The spelling of 158641291 in words is "one hundred fifty-eight million, six hundred forty-one thousand, two hundred ninety-one".