158261013 has 16 divisors (see below), whose sum is σ = 246801600. Its totient is φ = 99954000.

The previous prime is 158261011. The next prime is 158261017. The reversal of 158261013 is 310162851.

It is not a de Polignac number, because 158261013 - 2¹ = 158261011 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (158261011) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 153738 + ... + 154763.

It is an arithmetic number, because the mean of its divisors is an integer number (15425100).

Almost surely, 2^158261013 is an apocalyptic number.

It is an amenable number.

158261013 is a deficient number, since it is larger than the sum of its proper divisors (88540587).

158261013 is a wasteful number, since it uses less digits than its factorization.

158261013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 308529 (or 308523 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 27.

The square root of 158261013 is about 12580.1833452458. The cubic root of 158261013 is about 540.9095473933.

The spelling of 158261013 in words is "one hundred fifty-eight million, two hundred sixty-one thousand, thirteen".