158501481 has 16 divisors (see below), whose sum is σ = 218684928. Its totient is φ = 102009600.

The previous prime is 158501479. The next prime is 158501503. The reversal of 158501481 is 184105851.

It is not a de Polignac number, because 158501481 - 2¹ = 158501479 is a prime.

It is a super-2 number, since 2×158501481² = 50245438958386722, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (158501411) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 41025 + ... + 44721.

It is an arithmetic number, because the mean of its divisors is an integer number (13667808).

Almost surely, 2^158501481 is an apocalyptic number.

It is an amenable number.

158501481 is a deficient number, since it is larger than the sum of its proper divisors (60183447).

158501481 is a wasteful number, since it uses less digits than its factorization.

158501481 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4192.

The product of its (nonzero) digits is 6400, while the sum is 33.

The square root of 158501481 is about 12589.7371299007. The cubic root of 158501481 is about 541.1833684934.

The spelling of 158501481 in words is "one hundred fifty-eight million, five hundred one thousand, four hundred eighty-one".