64203157 has 2 divisors, whose sum is σ = 64203158. Its totient is φ = 64203156.

The previous prime is 64203149. The next prime is 64203163. The reversal of 64203157 is 75130246.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 63345681 + 857476 = 7959^2 + 926^2 .

It is a cyclic number.

It is not a de Polignac number, because 64203157 - 2³ = 64203149 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (64203137) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32101578 + 32101579.

It is an arithmetic number, because the mean of its divisors is an integer number (32101579).

Almost surely, 2^64203157 is an apocalyptic number.

It is an amenable number.

64203157 is a deficient number, since it is larger than the sum of its proper divisors (1).

64203157 is an equidigital number, since it uses as much as digits as its factorization.

64203157 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 5040, while the sum is 28.

The square root of 64203157 is about 8012.6872521021. The cubic root of 64203157 is about 400.4227966999.

The spelling of 64203157 in words is "sixty-four million, two hundred three thousand, one hundred fifty-seven".