146222135 has 4 divisors (see below), whose sum is σ = 175466568. Its totient is φ = 116977704.

The previous prime is 146222129. The next prime is 146222137. The reversal of 146222135 is 531222641.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 146222135 - 2¹⁰ = 146221111 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 (146222137) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 14622209 + ... + 14622218.

It is an arithmetic number, because the mean of its divisors is an integer number (43866642).

Almost surely, 2^146222135 is an apocalyptic number.

146222135 is a deficient number, since it is larger than the sum of its proper divisors (29244433).

146222135 is an equidigital number, since it uses as much as digits as its factorization.

146222135 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29244432.

The product of its digits is 2880, while the sum is 26.

The square root of 146222135 is about 12092.2344916066. The cubic root of 146222135 is about 526.8306582641.

Adding to 146222135 its reverse (531222641), we get a palindrome (677444776).

The spelling of 146222135 in words is "one hundred forty-six million, two hundred twenty-two thousand, one hundred thirty-five".