1214556166 has 4 divisors (see below), whose sum is σ = 1821834252. Its totient is φ = 607278082.

The previous prime is 1214556149. The next prime is 1214556197. The reversal of 1214556166 is 6616554121.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 6616554121 = 1931 ⋅3426491.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 303639040 + ... + 303639043.

It is an arithmetic number, because the mean of its divisors is an integer number (455458563).

Almost surely, 2^1214556166 is an apocalyptic number.

1214556166 is a deficient number, since it is larger than the sum of its proper divisors (607278086).

1214556166 is an equidigital number, since it uses as much as digits as its factorization.

1214556166 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 607278085.

The product of its digits is 43200, while the sum is 37.

The square root of 1214556166 is about 34850.4830095653. The cubic root of 1214556166 is about 1066.9380438204.

The spelling of 1214556166 in words is "one billion, two hundred fourteen million, five hundred fifty-six thousand, one hundred sixty-six".