1144513777 has 8 divisors (see below), whose sum is σ = 1253421792. Its totient is φ = 1036416000.

The previous prime is 1144513759. The next prime is 1144513807. The reversal of 1144513777 is 7773154411.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1144513777 - 2¹⁹ = 1143989489 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1144513717) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 199599 + ... + 205252.

It is an arithmetic number, because the mean of its divisors is an integer number (156677724).

Almost surely, 2^1144513777 is an apocalyptic number.

It is an amenable number.

1144513777 is a deficient number, since it is larger than the sum of its proper divisors (108908015).

1144513777 is a wasteful number, since it uses less digits than its factorization.

1144513777 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 405119.

The product of its digits is 82320, while the sum is 40.

The square root of 1144513777 is about 33830.6632657416. The cubic root of 1144513777 is about 1046.0208508165.

The spelling of 1144513777 in words is "one billion, one hundred forty-four million, five hundred thirteen thousand, seven hundred seventy-seven".