1245140255 has 16 divisors (see below), whose sum is σ = 1508721984. Its totient is φ = 986446080.

The previous prime is 1245140249. The next prime is 1245140263. The reversal of 1245140255 is 5520415421.

It is not a de Polignac number, because 1245140255 - 2²⁶ = 1178031391 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 313814 + ... + 317756.

It is an arithmetic number, because the mean of its divisors is an integer number (94295124).

Almost surely, 2^1245140255 is an apocalyptic number.

1245140255 is a deficient number, since it is larger than the sum of its proper divisors (263581729).

1245140255 is a wasteful number, since it uses less digits than its factorization.

1245140255 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4546.

The product of its (nonzero) digits is 8000, while the sum is 29.

The square root of 1245140255 is about 35286.5449569662. The cubic root of 1245140255 is about 1075.8195315483.

Adding to 1245140255 its reverse (5520415421), we get a palindrome (6765555676).

The spelling of 1245140255 in words is "one billion, two hundred forty-five million, one hundred forty thousand, two hundred fifty-five".