1144511455 has 8 divisors (see below), whose sum is σ = 1445698800. Its totient is φ = 867419136.

The previous prime is 1144511399. The next prime is 1144511471. The reversal of 1144511455 is 5541154411.

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 1144511455 - 2¹³ = 1144503263 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6023650 + ... + 6023839.

It is an arithmetic number, because the mean of its divisors is an integer number (180712350).

Almost surely, 2^1144511455 is an apocalyptic number.

1144511455 is a deficient number, since it is larger than the sum of its proper divisors (301187345).

1144511455 is a wasteful number, since it uses less digits than its factorization.

1144511455 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12047513.

The product of its digits is 8000, while the sum is 31.

The square root of 1144511455 is about 33830.6289477450. The cubic root of 1144511455 is about 1046.0201434238.

Adding to 1144511455 its reverse (5541154411), we get a palindrome (6685665866).

The spelling of 1144511455 in words is "one billion, one hundred forty-four million, five hundred eleven thousand, four hundred fifty-five".