1144542651 has 16 divisors (see below), whose sum is σ = 1744856064. Its totient is φ = 653727744.

The previous prime is 1144542643. The next prime is 1144542713. The reversal of 1144542651 is 1562454411.

It is not a de Polignac number, because 1144542651 - 2³ = 1144542643 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1144542611) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 40251 + ... + 62523.

It is an arithmetic number, because the mean of its divisors is an integer number (109053504).

Almost surely, 2^1144542651 is an apocalyptic number.

1144542651 is a deficient number, since it is larger than the sum of its proper divisors (600313413).

1144542651 is a wasteful number, since it uses less digits than its factorization.

1144542651 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24730.

The product of its digits is 19200, while the sum is 33.

The square root of 1144542651 is about 33831.0900060876. The cubic root of 1144542651 is about 1046.0296471434.

The spelling of 1144542651 in words is "one billion, one hundred forty-four million, five hundred forty-two thousand, six hundred fifty-one".