1144655061 has 16 divisors (see below), whose sum is σ = 1700379648. Its totient is φ = 678969200.

The previous prime is 1144655023. The next prime is 1144655063. The reversal of 1144655061 is 1605564411.

It is a cyclic number.

It is not a de Polignac number, because 1144655061 - 2¹⁰ = 1144654037 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1144655063) 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, 367455 + ... + 370556.

It is an arithmetic number, because the mean of its divisors is an integer number (106273728).

Almost surely, 2^1144655061 is an apocalyptic number.

1144655061 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

1144655061 is a deficient number, since it is larger than the sum of its proper divisors (555724587).

1144655061 is a wasteful number, since it uses less digits than its factorization.

1144655061 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 738072.

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

The square root of 1144655061 is about 33832.7513069806. The cubic root of 1144655061 is about 1046.0638909068.

The spelling of 1144655061 in words is "one billion, one hundred forty-four million, six hundred fifty-five thousand, sixty-one".