1214244551 has 32 divisors (see below), whose sum is σ = 1365282240. Its totient is φ = 1079350272.

The previous prime is 1214244527. The next prime is 1214244569. The reversal of 1214244551 is 1554424121.

It is a happy number.

It is a de Polignac number, because none of the positive numbers 2^k-1214244551 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1214240551) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 10745471 + ... + 10745583.

It is an arithmetic number, because the mean of its divisors is an integer number (42665070).

Almost surely, 2^1214244551 is an apocalyptic number.

1214244551 is a deficient number, since it is larger than the sum of its proper divisors (151037689).

1214244551 is an equidigital number, since it uses as much as digits as its factorization.

1214244551 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 292 (or 266 counting only the distinct ones).

The product of its digits is 6400, while the sum is 29.

The square root of 1214244551 is about 34846.0119812870. The cubic root of 1214244551 is about 1066.8467889939.

Adding to 1214244551 its reverse (1554424121), we get a palindrome (2768668672).

The spelling of 1214244551 in words is "one billion, two hundred fourteen million, two hundred forty-four thousand, five hundred fifty-one".