1214522431 has 4 divisors (see below), whose sum is σ = 1215126592. Its totient is φ = 1213918272.

The previous prime is 1214522423. The next prime is 1214522437. The reversal of 1214522431 is 1342254121.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1214522431 - 2³ = 1214522423 is a prime.

It is a super-2 number, since 2×1214522431² = 2950129470804299522, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1214522396 and 1214522405.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1214522437) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 299055 + ... + 303088.

It is an arithmetic number, because the mean of its divisors is an integer number (303781648).

Almost surely, 2^1214522431 is an apocalyptic number.

1214522431 is a deficient number, since it is larger than the sum of its proper divisors (604161).

1214522431 is an equidigital number, since it uses as much as digits as its factorization.

1214522431 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 604160.

The product of its digits is 1920, while the sum is 25.

The square root of 1214522431 is about 34849.9990100430. Note that the first 3 decimals coincide. The cubic root of 1214522431 is about 1066.9281654551.

Adding to 1214522431 its reverse (1342254121), we get a palindrome (2556776552).

The spelling of 1214522431 in words is "one billion, two hundred fourteen million, five hundred twenty-two thousand, four hundred thirty-one".