1224158252 has 6 divisors (see below), whose sum is σ = 2142276948. Its totient is φ = 612079124.

The previous prime is 1224158249. The next prime is 1224158281. The reversal of 1224158252 is 2528514221.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 153019778 + ... + 153019785.

It is an arithmetic number, because the mean of its divisors is an integer number (357046158).

Almost surely, 2^1224158252 is an apocalyptic number.

It is an amenable number.

1224158252 is a deficient number, since it is larger than the sum of its proper divisors (918118696).

1224158252 is a wasteful number, since it uses less digits than its factorization.

1224158252 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 306039567 (or 306039565 counting only the distinct ones).

The product of its digits is 12800, while the sum is 32.

The square root of 1224158252 is about 34987.9729621480. The cubic root of 1224158252 is about 1069.7423469068.

The spelling of 1224158252 in words is "one billion, two hundred twenty-four million, one hundred fifty-eight thousand, two hundred fifty-two".