202051457 has 2 divisors, whose sum is σ = 202051458. Its totient is φ = 202051456.

The previous prime is 202051411. The next prime is 202051471. The reversal of 202051457 is 754150202.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 185068816 + 16982641 = 13604^2 + 4121^2 .

It is a cyclic number.

It is not a de Polignac number, because 202051457 - 2⁶ = 202051393 is a prime.

It is not a weakly prime, because it can be changed into another prime (202051357) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 101025728 + 101025729.

It is an arithmetic number, because the mean of its divisors is an integer number (101025729).

Almost surely, 2^202051457 is an apocalyptic number.

It is an amenable number.

202051457 is a deficient number, since it is larger than the sum of its proper divisors (1).

202051457 is an equidigital number, since it uses as much as digits as its factorization.

202051457 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2800, while the sum is 26.

The square root of 202051457 is about 14214.4805392248. The cubic root of 202051457 is about 586.7962487449.

The spelling of 202051457 in words is "two hundred two million, fifty-one thousand, four hundred fifty-seven".