246940990129 has 2 divisors, whose sum is σ = 246940990130. Its totient is φ = 246940990128.

The previous prime is 246940990117. The next prime is 246940990157. The reversal of 246940990129 is 921099049642.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 237191402529 + 9749587600 = 487023^2 + 98740^2 .

It is a cyclic number.

It is not a de Polignac number, because 246940990129 - 2³⁵ = 212581251761 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 246940990129.

It is not a weakly prime, because it can be changed into another prime (246940990189) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 123470495064 + 123470495065.

It is an arithmetic number, because the mean of its divisors is an integer number (123470495065).

Almost surely, 2^246940990129 is an apocalyptic number.

It is an amenable number.

246940990129 is a deficient number, since it is larger than the sum of its proper divisors (1).

246940990129 is an equidigital number, since it uses as much as digits as its factorization.

246940990129 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2519424, while the sum is 55.

The spelling of 246940990129 in words is "two hundred forty-six billion, nine hundred forty million, nine hundred ninety thousand, one hundred twenty-nine".