1144656501 has 16 divisors (see below), whose sum is σ = 1624593600. Its totient is φ = 714814848.

The previous prime is 1144656481. The next prime is 1144656619. The reversal of 1144656501 is 1056564411.

It is not a de Polignac number, because 1144656501 - 2⁶ = 1144656437 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1144656301) 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, 107746 + ... + 117891.

It is an arithmetic number, because the mean of its divisors is an integer number (101537100).

Almost surely, 2^1144656501 is an apocalyptic number.

It is an amenable number.

1144656501 is a deficient number, since it is larger than the sum of its proper divisors (479937099).

1144656501 is a wasteful number, since it uses less digits than its factorization.

1144656501 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 225748.

The product of its (nonzero) digits is 14400, while the sum is 33.

The square root of 1144656501 is about 33832.7725881282. The cubic root of 1144656501 is about 1046.0643295634.

The spelling of 1144656501 in words is "one billion, one hundred forty-four million, six hundred fifty-six thousand, five hundred one".