1144664354 has 4 divisors (see below), whose sum is σ = 1716996534. Its totient is φ = 572332176.

The previous prime is 1144664351. The next prime is 1144664377. The reversal of 1144664354 is 4534664411.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 4534664411 = 41 ⋅110601571.

It can be written as a sum of positive squares in only one way, i.e., 1123255225 + 21409129 = 33515^2 + 4627^2 .

It is not an unprimeable number, because it can be changed into a prime (1144664351) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 286166087 + ... + 286166090.

Almost surely, 2^1144664354 is an apocalyptic number.

1144664354 is a deficient number, since it is larger than the sum of its proper divisors (572332180).

1144664354 is an equidigital number, since it uses as much as digits as its factorization.

1144664354 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 572332179.

The product of its digits is 138240, while the sum is 38.

The square root of 1144664354 is about 33832.8886440398. Note that the first 3 decimals coincide. The cubic root of 1144664354 is about 1046.0667217583.

The spelling of 1144664354 in words is "one billion, one hundred forty-four million, six hundred sixty-four thousand, three hundred fifty-four".