158440269 has 8 divisors (see below), whose sum is σ = 227504032. Its totient is φ = 97501680.

The previous prime is 158440237. The next prime is 158440283. The reversal of 158440269 is 962044851.

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

It is not a de Polignac number, because 158440269 - 2⁵ = 158440237 is a prime.

It is a super-2 number, since 2×158440269² = 50206637681584722, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (39), and also a Moran number because the ratio is a prime number: 4062571 = 158440269 / (1 + 5 + 8 + 4 + 4 + 0 + 2 + 6 + 9).

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (158440669) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2031247 + ... + 2031324.

It is an arithmetic number, because the mean of its divisors is an integer number (28438004).

Almost surely, 2^158440269 is an apocalyptic number.

It is an amenable number.

158440269 is a deficient number, since it is larger than the sum of its proper divisors (69063763).

158440269 is a wasteful number, since it uses less digits than its factorization.

158440269 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4062587.

The product of its (nonzero) digits is 69120, while the sum is 39.

The square root of 158440269 is about 12587.3058674206. The cubic root of 158440269 is about 541.1136926319.

The spelling of 158440269 in words is "one hundred fifty-eight million, four hundred forty thousand, two hundred sixty-nine".