158120641 has 32 divisors (see below), whose sum is σ = 197406720. Its totient is φ = 123638400.

The previous prime is 158120639. The next prime is 158120659. The reversal of 158120641 is 146021851.

158120641 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is not a de Polignac number, because 158120641 - 2¹ = 158120639 is a prime.

It is a super-2 number, since 2×158120641² = 50004274220501762, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (158120681) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 583336 + ... + 583606.

It is an arithmetic number, because the mean of its divisors is an integer number (6168960).

Almost surely, 2^158120641 is an apocalyptic number.

It is an amenable number.

158120641 is a deficient number, since it is larger than the sum of its proper divisors (39286079).

158120641 is a wasteful number, since it uses less digits than its factorization.

158120641 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 445.

The product of its (nonzero) digits is 1920, while the sum is 28.

The square root of 158120641 is about 12574.6030156025. The cubic root of 158120641 is about 540.7495774524.

It can be divided in two parts, 1581 and 20641, that added together give a palindrome (22222).

The spelling of 158120641 in words is "one hundred fifty-eight million, one hundred twenty thousand, six hundred forty-one".