158215275 has 120 divisors (see below), whose sum is σ = 316884480. Its totient is φ = 77837760.

The previous prime is 158215241. The next prime is 158215283. The reversal of 158215275 is 572512851.

158215275 is a `hidden beast` number, since 1 + 582 + 1 + 5 + 2 + 75 = 666.

It is not a de Polignac number, because 158215275 - 2¹⁹ = 157690987 is a prime.

It is a hoax number, since the sum of its digits (36) coincides with the sum of the digits of its distinct prime factors.

It is an unprimeable number.

It is a polite number, since it can be written in 119 ways as a sum of consecutive naturals, for example, 2002686 + ... + 2002764.

It is an arithmetic number, because the mean of its divisors is an integer number (2640704).

Almost surely, 2^158215275 is an apocalyptic number.

158215275 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

158215275 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

158215275 is a wasteful number, since it uses less digits than its factorization.

158215275 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 167 (or 153 counting only the distinct ones).

The product of its digits is 28000, while the sum is 36.

The square root of 158215275 is about 12578.3653548464. The cubic root of 158215275 is about 540.8574341067.

The spelling of 158215275 in words is "one hundred fifty-eight million, two hundred fifteen thousand, two hundred seventy-five".