1254523969 has 2 divisors, whose sum is σ = 1254523970. Its totient is φ = 1254523968.

The previous prime is 1254523967. The next prime is 1254523997. The reversal of 1254523969 is 9693254521.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 971880625 + 282643344 = 31175^2 + 16812^2 .

It is a cyclic number.

It is not a de Polignac number, because 1254523969 - 2¹ = 1254523967 is a prime.

It is a super-2 number, since 2×1254523969² = 3147660777591025922, which contains 22 as substring.

Together with 1254523967, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (1254523967) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 627261984 + 627261985.

It is an arithmetic number, because the mean of its divisors is an integer number (627261985).

Almost surely, 2^1254523969 is an apocalyptic number.

It is an amenable number.

1254523969 is a deficient number, since it is larger than the sum of its proper divisors (1).

1254523969 is an equidigital number, since it uses as much as digits as its factorization.

1254523969 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 583200, while the sum is 46.

The square root of 1254523969 is about 35419.2598595736. The cubic root of 1254523969 is about 1078.5153264989.

The spelling of 1254523969 in words is "one billion, two hundred fifty-four million, five hundred twenty-three thousand, nine hundred sixty-nine".