1214145 has 12 divisors (see below), whose sum is σ = 2104596. Its totient is φ = 647520.

The previous prime is 1214141. The next prime is 1214159. The reversal of 1214145 is 5414121.

It can be written as a sum of positive squares in 2 ways, for example, as 269361 + 944784 = 519^2 + 972^2 .

It is not a de Polignac number, because 1214145 - 2² = 1214141 is a prime.

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

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (1214141) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 13446 + ... + 13535.

It is an arithmetic number, because the mean of its divisors is an integer number (175383).

2^1214145 is an apocalyptic number.

1214145 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1214145 is a deficient number, since it is larger than the sum of its proper divisors (890451).

1214145 is a wasteful number, since it uses less digits than its factorization.

1214145 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26992 (or 26989 counting only the distinct ones).

The product of its digits is 160, while the sum is 18.

The square root of 1214145 is about 1101.8824801221. The cubic root of 1214145 is about 106.6817632713.

Adding to 1214145 its reverse (5414121), we get a palindrome (6628266).

The spelling of 1214145 in words is "one million, two hundred fourteen thousand, one hundred forty-five".