158223000 has 128 divisors (see below), whose sum is σ = 531760320. Its totient is φ = 38937600.

The previous prime is 158222993. The next prime is 158223001. The reversal of 158223000 is 322851.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (158223001) 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 31 ways as a sum of consecutive naturals, for example, 36972 + ... + 41028.

Almost surely, 2^158223000 is an apocalyptic number.

158223000 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 158223000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (265880160).

158223000 is an abundant number, since it is smaller than the sum of its proper divisors (373537320).

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

158223000 is a wasteful number, since it uses less digits than its factorization.

158223000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4094 (or 4080 counting only the distinct ones).

The product of its (nonzero) digits is 480, while the sum is 21.

The square root of 158223000 is about 12578.6724259756. The cubic root of 158223000 is about 540.8662365768.

Adding to 158223000 its reverse (322851), we get a palindrome (158545851).

The spelling of 158223000 in words is "one hundred fifty-eight million, two hundred twenty-three thousand".