1144634403 has 16 divisors (see below), whose sum is σ = 1665734400. Its totient is φ = 693379680.

The previous prime is 1144634389. The next prime is 1144634417. The reversal of 1144634403 is 3044364411.

It is an interprime number because it is at equal distance from previous prime (1144634389) and next prime (1144634417).

It is not a de Polignac number, because 1144634403 - 2¹⁷ = 1144503331 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1144634453) 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, 71578 + ... + 86096.

It is an arithmetic number, because the mean of its divisors is an integer number (104108400).

Almost surely, 2^1144634403 is an apocalyptic number.

1144634403 is a deficient number, since it is larger than the sum of its proper divisors (521099997).

1144634403 is a wasteful number, since it uses less digits than its factorization.

1144634403 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16922.

The product of its (nonzero) digits is 13824, while the sum is 30.

The square root of 1144634403 is about 33832.4460097109. The cubic root of 1144634403 is about 1046.0575979724.

Adding to 1144634403 its reverse (3044364411), we get a palindrome (4188998814).

The spelling of 1144634403 in words is "one billion, one hundred forty-four million, six hundred thirty-four thousand, four hundred three".