158645423 has 4 divisors (see below), whose sum is σ = 158712048. Its totient is φ = 158578800.

The previous prime is 158645419. The next prime is 158645429. The reversal of 158645423 is 324546851.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 324546851 = 281 ⋅1154971.

It is a cyclic number.

It is not a de Polignac number, because 158645423 - 2² = 158645419 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (158645429) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 29603 + ... + 34548.

It is an arithmetic number, because the mean of its divisors is an integer number (39678012).

Almost surely, 2^158645423 is an apocalyptic number.

158645423 is a deficient number, since it is larger than the sum of its proper divisors (66625).

158645423 is an equidigital number, since it uses as much as digits as its factorization.

158645423 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 66624.

The product of its digits is 115200, while the sum is 38.

The square root of 158645423 is about 12595.4524730158. The cubic root of 158645423 is about 541.3471428773.

The spelling of 158645423 in words is "one hundred fifty-eight million, six hundred forty-five thousand, four hundred twenty-three".