1214551233 has 128 divisors (see below), whose sum is σ = 2245708800. Its totient is φ = 634023936.

The previous prime is 1214551223. The next prime is 1214551243. The reversal of 1214551233 is 3321554121.

1214551233 is a `hidden beast` number, since 1 + 2 + 145 + 512 + 3 + 3 = 666.

It is an interprime number because it is at equal distance from previous prime (1214551223) and next prime (1214551243).

It is not a de Polignac number, because 1214551233 - 2⁹ = 1214550721 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a junction number, because it is equal to n+sod(n) for n = 1214551197 and 1214551206.

It is not an unprimeable number, because it can be changed into a prime (1214551223) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 10748185 + ... + 10748297.

It is an arithmetic number, because the mean of its divisors is an integer number (17544600).

Almost surely, 2^1214551233 is an apocalyptic number.

It is an amenable number.

1214551233 is a deficient number, since it is larger than the sum of its proper divisors (1031157567).

1214551233 is a wasteful number, since it uses less digits than its factorization.

1214551233 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 248 (or 242 counting only the distinct ones).

The product of its digits is 3600, while the sum is 27.

The square root of 1214551233 is about 34850.4122357254. The cubic root of 1214551233 is about 1066.9365993386.

The spelling of 1214551233 in words is "one billion, two hundred fourteen million, five hundred fifty-one thousand, two hundred thirty-three".