1214656 has 14 divisors (see below), whose sum is σ = 2410460. Its totient is φ = 607296.

The previous prime is 1214641. The next prime is 1214657. The reversal of 1214656 is 6564121.

It is a self number, because there is not a number n which added to its sum of digits gives 1214656.

It is not an unprimeable number, because it can be changed into a prime (1214657) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9426 + ... + 9553.

2^1214656 is an apocalyptic number.

1214656 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

1214656 is a deficient number, since it is larger than the sum of its proper divisors (1195804).

1214656 is an equidigital number, since it uses as much as digits as its factorization.

1214656 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18991 (or 18981 counting only the distinct ones).

The product of its digits is 1440, while the sum is 25.

The square root of 1214656 is about 1102.1143316371. The cubic root of 1214656 is about 106.6967276385.

Adding to 1214656 its reverse (6564121), we get a palindrome (7778777).

The spelling of 1214656 in words is "one million, two hundred fourteen thousand, six hundred fifty-six".