1284252523 has 2 divisors, whose sum is σ = 1284252524. Its totient is φ = 1284252522.

The previous prime is 1284252517. The next prime is 1284252551. The reversal of 1284252523 is 3252524821.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1284252523 - 2¹³ = 1284244331 is a prime.

It is not a weakly prime, because it can be changed into another prime (1284252223) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 642126261 + 642126262.

It is an arithmetic number, because the mean of its divisors is an integer number (642126262).

Almost surely, 2^1284252523 is an apocalyptic number.

1284252523 is a deficient number, since it is larger than the sum of its proper divisors (1).

1284252523 is an equidigital number, since it uses as much as digits as its factorization.

1284252523 is an evil number, because the sum of its binary digits is even.

The product of its digits is 38400, while the sum is 34.

The square root of 1284252523 is about 35836.4691759665. The cubic root of 1284252523 is about 1086.9681261913.

The spelling of 1284252523 in words is "one billion, two hundred eighty-four million, two hundred fifty-two thousand, five hundred twenty-three".