254126629129 has 2 divisors, whose sum is σ = 254126629130. Its totient is φ = 254126629128.

The previous prime is 254126629103. The next prime is 254126629157. The reversal of 254126629129 is 921926621452.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 138082844025 + 116043785104 = 371595^2 + 340652^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-254126629129 is a prime.

It is a super-2 number, since 2×254126629129² (a number of 24 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (254126629189) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 127063314564 + 127063314565.

It is an arithmetic number, because the mean of its divisors is an integer number (127063314565).

Almost surely, 2^254126629129 is an apocalyptic number.

It is an amenable number.

254126629129 is a deficient number, since it is larger than the sum of its proper divisors (1).

254126629129 is an equidigital number, since it uses as much as digits as its factorization.

254126629129 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 933120, while the sum is 49.

The spelling of 254126629129 in words is "two hundred fifty-four billion, one hundred twenty-six million, six hundred twenty-nine thousand, one hundred twenty-nine".