202691253 has 8 divisors (see below), whose sum is σ = 270339808. Its totient is φ = 135085104.

The previous prime is 202691243. The next prime is 202691257. The reversal of 202691253 is 352196202.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 202691253 - 2⁶ = 202691189 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 202691253.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (202691257) by changing a digit.

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 in 7 ways as a sum of consecutive naturals, for example, 3075 + ... + 20367.

It is an arithmetic number, because the mean of its divisors is an integer number (33792476).

Almost surely, 2^202691253 is an apocalyptic number.

It is an amenable number.

202691253 is a deficient number, since it is larger than the sum of its proper divisors (67648555).

202691253 is a wasteful number, since it uses less digits than its factorization.

202691253 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21203.

The product of its (nonzero) digits is 6480, while the sum is 30.

The square root of 202691253 is about 14236.9678302650. The cubic root of 202691253 is about 587.4149596542.

The spelling of 202691253 in words is "two hundred two million, six hundred ninety-one thousand, two hundred fifty-three".