158423265 has 96 divisors (see below), whose sum is σ = 368798976. Its totient is φ = 60756480.

The previous prime is 158423261. The next prime is 158423267. The reversal of 158423265 is 562324851.

It is not a de Polignac number, because 158423265 - 2² = 158423261 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (158423261) 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 95 ways as a sum of consecutive naturals, for example, 43287 + ... + 46803.

It is an arithmetic number, because the mean of its divisors is an integer number (3841656).

Almost surely, 2^158423265 is an apocalyptic number.

158423265 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

158423265 is an abundant number, since it is smaller than the sum of its proper divisors (210375711).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

158423265 is a wasteful number, since it uses less digits than its factorization.

158423265 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3559 (or 3556 counting only the distinct ones).

The product of its digits is 57600, while the sum is 36.

The square root of 158423265 is about 12586.6304069040. The cubic root of 158423265 is about 541.0943342822.

The spelling of 158423265 in words is "one hundred fifty-eight million, four hundred twenty-three thousand, two hundred sixty-five".