1214521432 has 8 divisors (see below), whose sum is σ = 2277227700. Its totient is φ = 607260712.

The previous prime is 1214521409. The next prime is 1214521433. The reversal of 1214521432 is 2341254121.

It is a tau number, because it is divible by the number of its divisors (8).

It is an alternating number because its digits alternate between odd and even.

It is a junction number, because it is equal to n+sod(n) for n = 1214521397 and 1214521406.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1214521433) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 75907582 + ... + 75907597.

Almost surely, 2^1214521432 is an apocalyptic number.

It is an amenable number.

1214521432 is a deficient number, since it is larger than the sum of its proper divisors (1062706268).

1214521432 is a wasteful number, since it uses less digits than its factorization.

1214521432 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 151815185 (or 151815181 counting only the distinct ones).

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

The square root of 1214521432 is about 34849.9846771846. The cubic root of 1214521432 is about 1066.9278729227.

Adding to 1214521432 its reverse (2341254121), we get a palindrome (3555775553).

The spelling of 1214521432 in words is "one billion, two hundred fourteen million, five hundred twenty-one thousand, four hundred thirty-two".