158135246261 has 8 divisors (see below), whose sum is σ = 158790693600. Its totient is φ = 157480300080.

The previous prime is 158135246239. The next prime is 158135246299. The reversal of 158135246261 is 162642531851.

158135246261 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 a de Polignac number, because none of the positive numbers 2^k-158135246261 is a prime.

It is a super-2 number, since 2×158135246261² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (158135246221) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 513830 + ... + 761768.

It is an arithmetic number, because the mean of its divisors is an integer number (19848836700).

Almost surely, 2^158135246261 is an apocalyptic number.

It is an amenable number.

158135246261 is a deficient number, since it is larger than the sum of its proper divisors (655447339).

158135246261 is a wasteful number, since it uses less digits than its factorization.

158135246261 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 250579.

The product of its digits is 345600, while the sum is 44.

The spelling of 158135246261 in words is "one hundred fifty-eight billion, one hundred thirty-five million, two hundred forty-six thousand, two hundred sixty-one".