259151897 has 2 divisors, whose sum is σ = 259151898. Its totient is φ = 259151896.

The previous prime is 259151863. The next prime is 259151903. The reversal of 259151897 is 798151952.

It is a happy number.

259151897 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., 194574601 + 64577296 = 13949^2 + 8036^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-259151897 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (259151197) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 129575948 + 129575949.

It is an arithmetic number, because the mean of its divisors is an integer number (129575949).

Almost surely, 2^259151897 is an apocalyptic number.

It is an amenable number.

259151897 is a deficient number, since it is larger than the sum of its proper divisors (1).

259151897 is an equidigital number, since it uses as much as digits as its factorization.

259151897 is an evil number, because the sum of its binary digits is even.

The product of its digits is 226800, while the sum is 47.

The square root of 259151897 is about 16098.1954578766. The cubic root of 259151897 is about 637.5556968895. Note that the first 3 decimals are identical.

The spelling of 259151897 in words is "two hundred fifty-nine million, one hundred fifty-one thousand, eight hundred ninety-seven".