202954421 has 2 divisors, whose sum is σ = 202954422. Its totient is φ = 202954420.

The previous prime is 202954399. The next prime is 202954429. The reversal of 202954421 is 124459202.

202954421 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 194463025 + 8491396 = 13945^2 + 2914^2 .

It is a cyclic number.

It is not a de Polignac number, because 202954421 - 2¹⁸ = 202692277 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (202954429) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 101477210 + 101477211.

It is an arithmetic number, because the mean of its divisors is an integer number (101477211).

Almost surely, 2^202954421 is an apocalyptic number.

It is an amenable number.

202954421 is a deficient number, since it is larger than the sum of its proper divisors (1).

202954421 is an equidigital number, since it uses as much as digits as its factorization.

202954421 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 5760, while the sum is 29.

The square root of 202954421 is about 14246.2072496507. The cubic root of 202954421 is about 587.6690767931.

The spelling of 202954421 in words is "two hundred two million, nine hundred fifty-four thousand, four hundred twenty-one".