210802157 has 2 divisors, whose sum is σ = 210802158. Its totient is φ = 210802156.

The previous prime is 210802133. The next prime is 210802171. The reversal of 210802157 is 751208012.

210802157 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., 105555076 + 105247081 = 10274^2 + 10259^2 .

It is a cyclic number.

It is not a de Polignac number, because 210802157 - 2⁸ = 210801901 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 (210805157) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 105401078 + 105401079.

It is an arithmetic number, because the mean of its divisors is an integer number (105401079).

Almost surely, 2^210802157 is an apocalyptic number.

It is an amenable number.

210802157 is a deficient number, since it is larger than the sum of its proper divisors (1).

210802157 is an equidigital number, since it uses as much as digits as its factorization.

210802157 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1120, while the sum is 26.

The square root of 210802157 is about 14519.0274123303. The cubic root of 210802157 is about 595.1480525108.

The spelling of 210802157 in words is "two hundred ten million, eight hundred two thousand, one hundred fifty-seven".