259012121 has 2 divisors, whose sum is σ = 259012122. Its totient is φ = 259012120.

The previous prime is 259012109. The next prime is 259012139. The reversal of 259012121 is 121210952.

259012121 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 217267600 + 41744521 = 14740^2 + 6461^2 .

It is a cyclic number.

It is not a de Polignac number, because 259012121 - 2⁶ = 259012057 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (259014121) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 129506060 + 129506061.

It is an arithmetic number, because the mean of its divisors is an integer number (129506061).

Almost surely, 2^259012121 is an apocalyptic number.

It is an amenable number.

259012121 is a deficient number, since it is larger than the sum of its proper divisors (1).

259012121 is an equidigital number, since it uses as much as digits as its factorization.

259012121 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 360, while the sum is 23.

The square root of 259012121 is about 16093.8535161719. The cubic root of 259012121 is about 637.4410523990.

The spelling of 259012121 in words is "two hundred fifty-nine million, twelve thousand, one hundred twenty-one".