1254202129 has 2 divisors, whose sum is σ = 1254202130. Its totient is φ = 1254202128.

The previous prime is 1254202099. The next prime is 1254202153. The reversal of 1254202129 is 9212024521.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1240659729 + 13542400 = 35223^2 + 3680^2 .

It is a cyclic number.

It is not a de Polignac number, because 1254202129 - 2¹⁷ = 1254071057 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1254202097 and 1254202106.

It is not a weakly prime, because it can be changed into another prime (1254202189) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 627101064 + 627101065.

It is an arithmetic number, because the mean of its divisors is an integer number (627101065).

Almost surely, 2^1254202129 is an apocalyptic number.

It is an amenable number.

1254202129 is a deficient number, since it is larger than the sum of its proper divisors (1).

1254202129 is an equidigital number, since it uses as much as digits as its factorization.

1254202129 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2880, while the sum is 28.

The square root of 1254202129 is about 35414.7162772766. The cubic root of 1254202129 is about 1078.4230899034.

The spelling of 1254202129 in words is "one billion, two hundred fifty-four million, two hundred two thousand, one hundred twenty-nine".