1244012051 has 16 divisors (see below), whose sum is σ = 1312754688. Its totient is φ = 1177356000.

The previous prime is 1244012047. The next prime is 1244012071. The reversal of 1244012051 is 1502104421.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 1244012051 - 2² = 1244012047 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1244012041) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 257480 + ... + 262266.

It is an arithmetic number, because the mean of its divisors is an integer number (82047168).

Almost surely, 2^1244012051 is an apocalyptic number.

1244012051 is a deficient number, since it is larger than the sum of its proper divisors (68742637).

1244012051 is a wasteful number, since it uses less digits than its factorization.

1244012051 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5002.

The product of its (nonzero) digits is 320, while the sum is 20.

The square root of 1244012051 is about 35270.5550140624. Note that the first 3 decimals coincide. The cubic root of 1244012051 is about 1075.4945050666.

Adding to 1244012051 its reverse (1502104421), we get a palindrome (2746116472).

The spelling of 1244012051 in words is "one billion, two hundred forty-four million, twelve thousand, fifty-one".