158781255 has 8 divisors (see below), whose sum is σ = 254050032. Its totient is φ = 84683328.

The previous prime is 158781247. The next prime is 158781263. The reversal of 158781255 is 552187851.

It is an interprime number because it is at equal distance from previous prime (158781247) and next prime (158781263).

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 158781255 - 2³ = 158781247 is a prime.

It is a super-2 number, since 2×158781255² = 50422973878750050, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 5292694 + ... + 5292723.

It is an arithmetic number, because the mean of its divisors is an integer number (31756254).

Almost surely, 2^158781255 is an apocalyptic number.

158781255 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

158781255 is a deficient number, since it is larger than the sum of its proper divisors (95268777).

158781255 is a wasteful number, since it uses less digits than its factorization.

158781255 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10585425.

The product of its digits is 112000, while the sum is 42.

The square root of 158781255 is about 12600.8434241522. The cubic root of 158781255 is about 541.5015990383.

The spelling of 158781255 in words is "one hundred fifty-eight million, seven hundred eighty-one thousand, two hundred fifty-five".