1234455243 has 16 divisors (see below), whose sum is σ = 1881565440. Its totient is φ = 705218976.

The previous prime is 1234455239. The next prime is 1234455263. The reversal of 1234455243 is 3425544321.

It is not a de Polignac number, because 1234455243 - 2² = 1234455239 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1234455263) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 154593 + ... + 162381.

It is an arithmetic number, because the mean of its divisors is an integer number (117597840).

Almost surely, 2^1234455243 is an apocalyptic number.

1234455243 is a deficient number, since it is larger than the sum of its proper divisors (647110197).

1234455243 is an equidigital number, since it uses as much as digits as its factorization.

1234455243 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15346.

The product of its digits is 57600, while the sum is 33.

The square root of 1234455243 is about 35134.8152549576. The cubic root of 1234455243 is about 1072.7333508037.

Adding to 1234455243 its reverse (3425544321), we get a palindrome (4659999564).

The spelling of 1234455243 in words is "one billion, two hundred thirty-four million, four hundred fifty-five thousand, two hundred forty-three".