146122158 has 128 divisors (see below), whose sum is σ = 379330560. Its totient is φ = 36495360.

The previous prime is 146122147. The next prime is 146122159. The reversal of 146122158 is 851221641.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (146122159) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 1506366 + ... + 1506462.

It is an arithmetic number, because the mean of its divisors is an integer number (2963520).

Almost surely, 2^146122158 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 146122158, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (189665280).

146122158 is an abundant number, since it is smaller than the sum of its proper divisors (233208402).

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

146122158 is a wasteful number, since it uses less digits than its factorization.

146122158 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 242.

The product of its digits is 3840, while the sum is 30.

The square root of 146122158 is about 12088.0998506796. The cubic root of 146122158 is about 526.7105602649.

Adding to 146122158 its reverse (851221641), we get a palindrome (997343799).

The spelling of 146122158 in words is "one hundred forty-six million, one hundred twenty-two thousand, one hundred fifty-eight".