1214123645 has 8 divisors (see below), whose sum is σ = 1665083904. Its totient is φ = 832541904.

The previous prime is 1214123639. The next prime is 1214123681. The reversal of 1214123645 is 5463214121.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1214123645 - 2¹⁰ = 1214122621 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 17344589 + ... + 17344658.

It is an arithmetic number, because the mean of its divisors is an integer number (208135488).

Almost surely, 2^1214123645 is an apocalyptic number.

It is an amenable number.

1214123645 is a deficient number, since it is larger than the sum of its proper divisors (450960259).

1214123645 is an equidigital number, since it uses as much as digits as its factorization.

1214123645 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34689259.

The product of its digits is 5760, while the sum is 29.

The square root of 1214123645 is about 34844.2770767310. The cubic root of 1214123645 is about 1066.8113780988.

Adding to 1214123645 its reverse (5463214121), we get a palindrome (6677337766).

The spelling of 1214123645 in words is "one billion, two hundred fourteen million, one hundred twenty-three thousand, six hundred forty-five".