202442251 has 16 divisors (see below), whose sum is σ = 231909120. Its totient is φ = 174921120.

The previous prime is 202442249. The next prime is 202442257. The reversal of 202442251 is 152244202.

It is not a de Polignac number, because 202442251 - 2¹ = 202442249 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (202442257) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 38785 + ... + 43693.

It is an arithmetic number, because the mean of its divisors is an integer number (14494320).

Almost surely, 2^202442251 is an apocalyptic number.

202442251 is a deficient number, since it is larger than the sum of its proper divisors (29466869).

202442251 is a wasteful number, since it uses less digits than its factorization.

202442251 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5106.

The product of its (nonzero) digits is 1280, while the sum is 22.

The square root of 202442251 is about 14228.2202330439. The cubic root of 202442251 is about 587.1743187220.

Adding to 202442251 its reverse (152244202), we get a palindrome (354686453).

The spelling of 202442251 in words is "two hundred two million, four hundred forty-two thousand, two hundred fifty-one".