146222525 has 12 divisors (see below), whose sum is σ = 191982132. Its totient is φ = 110096640.

The previous prime is 146222513. The next prime is 146222539. The reversal of 146222525 is 525222641.

It can be written as a sum of positive squares in 6 ways, for example, as 10686361 + 135536164 = 3269^2 + 11642^2 .

It is not a de Polignac number, because 146222525 - 2⁸ = 146222269 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

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 11 ways as a sum of consecutive naturals, for example, 171602 + ... + 172451.

It is an arithmetic number, because the mean of its divisors is an integer number (15998511).

Almost surely, 2^146222525 is an apocalyptic number.

It is an amenable number.

146222525 is a deficient number, since it is larger than the sum of its proper divisors (45759607).

146222525 is a wasteful number, since it uses less digits than its factorization.

146222525 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 344080 (or 344075 counting only the distinct ones).

The product of its digits is 9600, while the sum is 29.

The square root of 146222525 is about 12092.2506176477. The cubic root of 146222525 is about 526.8311266469.

The spelling of 146222525 in words is "one hundred forty-six million, two hundred twenty-two thousand, five hundred twenty-five".