255121429 has 2 divisors, whose sum is σ = 255121430. Its totient is φ = 255121428.

The previous prime is 255121423. The next prime is 255121453. The reversal of 255121429 is 924121552.

255121429 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., 187635204 + 67486225 = 13698^2 + 8215^2 .

It is a cyclic number.

It is not a de Polignac number, because 255121429 - 2²³ = 246732821 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 255121429.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (255121423) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 127560714 + 127560715.

It is an arithmetic number, because the mean of its divisors is an integer number (127560715).

Almost surely, 2^255121429 is an apocalyptic number.

It is an amenable number.

255121429 is a deficient number, since it is larger than the sum of its proper divisors (1).

255121429 is an equidigital number, since it uses as much as digits as its factorization.

255121429 is an evil number, because the sum of its binary digits is even.

The product of its digits is 7200, while the sum is 31.

The square root of 255121429 is about 15972.5210596199. The cubic root of 255121429 is about 634.2332108843.

The spelling of 255121429 in words is "two hundred fifty-five million, one hundred twenty-one thousand, four hundred twenty-nine".