1214720872 has 16 divisors (see below), whose sum is σ = 2279901060. Its totient is φ = 606747264.

The previous prime is 1214720867. The next prime is 1214720887. The reversal of 1214720872 is 2780274121.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 1213407556 + 1313316 = 34834^2 + 1146^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 68173 + ... + 84124.

Almost surely, 2^1214720872 is an apocalyptic number.

It is an amenable number.

1214720872 is a deficient number, since it is larger than the sum of its proper divisors (1065180188).

1214720872 is a wasteful number, since it uses less digits than its factorization.

1214720872 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 153300 (or 153296 counting only the distinct ones).

The product of its (nonzero) digits is 12544, while the sum is 34.

The square root of 1214720872 is about 34852.8459670082. The cubic root of 1214720872 is about 1066.9862708077.

Adding to 1214720872 its reverse (2780274121), we get a palindrome (3994994993).

The spelling of 1214720872 in words is "one billion, two hundred fourteen million, seven hundred twenty thousand, eight hundred seventy-two".