1234255247 has 4 divisors (see below), whose sum is σ = 1234340640. Its totient is φ = 1234169856.

The previous prime is 1234255193. The next prime is 1234255259. The reversal of 1234255247 is 7425524321.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 1234255247 - 2¹⁰ = 1234254223 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1234855247) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 15047 + ... + 51912.

It is an arithmetic number, because the mean of its divisors is an integer number (308585160).

Almost surely, 2^1234255247 is an apocalyptic number.

1234255247 is a deficient number, since it is larger than the sum of its proper divisors (85393).

1234255247 is an equidigital number, since it uses as much as digits as its factorization.

1234255247 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 85392.

The product of its digits is 67200, while the sum is 35.

The square root of 1234255247 is about 35131.9690168371. The cubic root of 1234255247 is about 1072.6754159460.

Adding to 1234255247 its reverse (7425524321), we get a palindrome (8659779568).

The spelling of 1234255247 in words is "one billion, two hundred thirty-four million, two hundred fifty-five thousand, two hundred forty-seven".