146215252 has 12 divisors (see below), whose sum is σ = 258752340. Its totient is φ = 72286016.

The previous prime is 146215213. The next prime is 146215297. The reversal of 146215252 is 252512641.

It can be written as a sum of positive squares in 2 ways, for example, as 67963536 + 78251716 = 8244^2 + 8846^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 146215252.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 205003 + ... + 205714.

It is an arithmetic number, because the mean of its divisors is an integer number (21562695).

Almost surely, 2^146215252 is an apocalyptic number.

It is an amenable number.

146215252 is a deficient number, since it is larger than the sum of its proper divisors (112537088).

146215252 is a wasteful number, since it uses less digits than its factorization.

146215252 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 410810 (or 410808 counting only the distinct ones).

The product of its digits is 4800, while the sum is 28.

The square root of 146215252 is about 12091.9498841171. The cubic root of 146215252 is about 526.8223917721.

Adding to 146215252 its reverse (252512641), we get a palindrome (398727893).

The spelling of 146215252 in words is "one hundred forty-six million, two hundred fifteen thousand, two hundred fifty-two".