1214478156 has 12 divisors (see below), whose sum is σ = 2833782392. Its totient is φ = 404826048.

The previous prime is 1214478143. The next prime is 1214478191. The reversal of 1214478156 is 6518744121.

It is a tau number, because it is divible by the number of its divisors (12).

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, 50603245 + ... + 50603268.

Almost surely, 2^1214478156 is an apocalyptic number.

It is an amenable number.

1214478156 is an abundant number, since it is smaller than the sum of its proper divisors (1619304236).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1214478156 is a wasteful number, since it uses less digits than its factorization.

1214478156 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 101206520 (or 101206518 counting only the distinct ones).

The product of its digits is 53760, while the sum is 39.

The square root of 1214478156 is about 34849.3637818540. The cubic root of 1214478156 is about 1066.9152004638.

The spelling of 1214478156 in words is "one billion, two hundred fourteen million, four hundred seventy-eight thousand, one hundred fifty-six".