202731145133 has 16 divisors (see below), whose sum is σ = 225572121600. Its totient is φ = 180658885680.

The previous prime is 202731145087. The next prime is 202731145171. The reversal of 202731145133 is 331541137202.

It is a cyclic number.

It is not a de Polignac number, because 202731145133 - 2⁸ = 202731144877 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 202731145133.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (202731145433) 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, 718391 + ... + 959972.

It is an arithmetic number, because the mean of its divisors is an integer number (14098257600).

Almost surely, 2^202731145133 is an apocalyptic number.

It is an amenable number.

202731145133 is a deficient number, since it is larger than the sum of its proper divisors (22840976467).

202731145133 is a wasteful number, since it uses less digits than its factorization.

202731145133 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1678592.

The product of its (nonzero) digits is 15120, while the sum is 32.

The spelling of 202731145133 in words is "two hundred two billion, seven hundred thirty-one million, one hundred forty-five thousand, one hundred thirty-three".