202858493 has 2 divisors, whose sum is σ = 202858494. Its totient is φ = 202858492.

The previous prime is 202858463. The next prime is 202858499. The reversal of 202858493 is 394858202.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 157201444 + 45657049 = 12538^2 + 6757^2 .

It is a cyclic number.

It is not a de Polignac number, because 202858493 - 2⁸ = 202858237 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 202858493.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (202858499) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 101429246 + 101429247.

It is an arithmetic number, because the mean of its divisors is an integer number (101429247).

Almost surely, 2^202858493 is an apocalyptic number.

It is an amenable number.

202858493 is a deficient number, since it is larger than the sum of its proper divisors (1).

202858493 is an equidigital number, since it uses as much as digits as its factorization.

202858493 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 138240, while the sum is 41.

The square root of 202858493 is about 14242.8400608867. The cubic root of 202858493 is about 587.5764734012.

The spelling of 202858493 in words is "two hundred two million, eight hundred fifty-eight thousand, four hundred ninety-three".