202272146 has 4 divisors (see below), whose sum is σ = 303408222. Its totient is φ = 101136072.

The previous prime is 202272139. The next prime is 202272173. The reversal of 202272146 is 641272202.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 641272202 = 2 ⋅320636101.

It can be written as a sum of positive squares in only one way, i.e., 124567921 + 77704225 = 11161^2 + 8815^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 50568035 + ... + 50568038.

Almost surely, 2^202272146 is an apocalyptic number.

202272146 is a deficient number, since it is larger than the sum of its proper divisors (101136076).

202272146 is a wasteful number, since it uses less digits than its factorization.

202272146 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 101136075.

The product of its (nonzero) digits is 2688, while the sum is 26.

The square root of 202272146 is about 14222.2412439109. The cubic root of 202272146 is about 587.0098120942.

The spelling of 202272146 in words is "two hundred two million, two hundred seventy-two thousand, one hundred forty-six".