1214331243 has 8 divisors (see below), whose sum is σ = 1619393856. Its totient is φ = 809411400.

The previous prime is 1214331229. The next prime is 1214331257. The reversal of 1214331243 is 3421334121.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (1214331229) and next prime (1214331257).

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1214331243 - 2⁶ = 1214331179 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1214331203) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13953 + ... + 51218.

It is an arithmetic number, because the mean of its divisors is an integer number (202424232).

Almost surely, 2^1214331243 is an apocalyptic number.

1214331243 is a deficient number, since it is larger than the sum of its proper divisors (405062613).

1214331243 is an equidigital number, since it uses as much as digits as its factorization.

1214331243 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 71385.

The product of its digits is 1728, while the sum is 24.

The square root of 1214331243 is about 34847.2558890941. The cubic root of 1214331243 is about 1066.8721778611.

Adding to 1214331243 its reverse (3421334121), we get a palindrome (4635665364).

The spelling of 1214331243 in words is "one billion, two hundred fourteen million, three hundred thirty-one thousand, two hundred forty-three".