1245333243 has 32 divisors (see below), whose sum is σ = 2071964160. Its totient is φ = 646364160.

The previous prime is 1245333233. The next prime is 1245333253. The reversal of 1245333243 is 3423335421.

It is an interprime number because it is at equal distance from previous prime (1245333233) and next prime (1245333253).

It is not a de Polignac number, because 1245333243 - 2⁸ = 1245332987 is a prime.

It is a super-2 number, since 2×1245333243² = 3101709772241794098, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 1245333243.

It is not an unprimeable number, because it can be changed into a prime (1245333233) by changing a digit.

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 31 ways as a sum of consecutive naturals, for example, 467371 + ... + 470027.

It is an arithmetic number, because the mean of its divisors is an integer number (64748880).

Almost surely, 2^1245333243 is an apocalyptic number.

1245333243 is a deficient number, since it is larger than the sum of its proper divisors (826630917).

1245333243 is a wasteful number, since it uses less digits than its factorization.

1245333243 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4707.

The product of its digits is 25920, while the sum is 30.

The square root of 1245333243 is about 35289.2794344118. The cubic root of 1245333243 is about 1075.8751101691.

Adding to 1245333243 its reverse (3423335421), we get a palindrome (4668668664).

The spelling of 1245333243 in words is "one billion, two hundred forty-five million, three hundred thirty-three thousand, two hundred forty-three".