1428502507 has 2 divisors, whose sum is σ = 1428502508. Its totient is φ = 1428502506.

The previous prime is 1428502501. The next prime is 1428502529. The reversal of 1428502507 is 7052058241.

It is a happy number.

It is a weak prime.

It is an emirp because it is prime and its reverse (7052058241) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1428502507 - 2¹¹ = 1428500459 is a prime.

It is not a weakly prime, because it can be changed into another prime (1428502501) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 714251253 + 714251254.

It is an arithmetic number, because the mean of its divisors is an integer number (714251254).

Almost surely, 2^1428502507 is an apocalyptic number.

1428502507 is a deficient number, since it is larger than the sum of its proper divisors (1).

1428502507 is an equidigital number, since it uses as much as digits as its factorization.

1428502507 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 22400, while the sum is 34.

The square root of 1428502507 is about 37795.5355432358. The cubic root of 1428502507 is about 1126.2297681718.

The spelling of 1428502507 in words is "one billion, four hundred twenty-eight million, five hundred two thousand, five hundred seven".