1144664554 has 8 divisors (see below), whose sum is σ = 1873087488. Its totient is φ = 520302060.

The previous prime is 1144664503. The next prime is 1144664567. The reversal of 1144664554 is 4554664411.

It is a happy number.

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

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 26015082 + ... + 26015125.

It is an arithmetic number, because the mean of its divisors is an integer number (234135936).

Almost surely, 2^1144664554 is an apocalyptic number.

1144664554 is a deficient number, since it is larger than the sum of its proper divisors (728422934).

1144664554 is a wasteful number, since it uses less digits than its factorization.

1144664554 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 52030220.

The product of its digits is 230400, while the sum is 40.

The square root of 1144664554 is about 33832.8915997436. The cubic root of 1144664554 is about 1046.0667826825.

The spelling of 1144664554 in words is "one billion, one hundred forty-four million, six hundred sixty-four thousand, five hundred fifty-four".