145202212 has 12 divisors (see below), whose sum is σ = 254240140. Its totient is φ = 72562176.

The previous prime is 145202209. The next prime is 145202221. The reversal of 145202212 is 212202541.

It can be written as a sum of positive squares in 2 ways, for example, as 65028096 + 80174116 = 8064^2 + 8954^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 145202212.

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, 333 + ... + 17044.

Almost surely, 2^145202212 is an apocalyptic number.

It is an amenable number.

145202212 is a deficient number, since it is larger than the sum of its proper divisors (109037928).

145202212 is a wasteful number, since it uses less digits than its factorization.

145202212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19470 (or 19468 counting only the distinct ones).

The product of its (nonzero) digits is 320, while the sum is 19.

The square root of 145202212 is about 12049.9880497866. The cubic root of 145202212 is about 525.6028895618.

Adding to 145202212 its reverse (212202541), we get a palindrome (357404753).

The spelling of 145202212 in words is "one hundred forty-five million, two hundred two thousand, two hundred twelve".