1144904207 has 4 divisors (see below), whose sum is σ = 1145230536. Its totient is φ = 1144577880.

The previous prime is 1144904203. The next prime is 1144904221. The reversal of 1144904207 is 7024094411.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1144904207 - 2² = 1144904203 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1144904203) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 157844 + ... + 164937.

It is an arithmetic number, because the mean of its divisors is an integer number (286307634).

Almost surely, 2^1144904207 is an apocalyptic number.

1144904207 is a deficient number, since it is larger than the sum of its proper divisors (326329).

1144904207 is an equidigital number, since it uses as much as digits as its factorization.

1144904207 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 326328.

The product of its (nonzero) digits is 8064, while the sum is 32.

The square root of 1144904207 is about 33836.4331305769. The cubic root of 1144904207 is about 1046.1397809388.

Adding to 1144904207 its reverse (7024094411), we get a palindrome (8168998618).

The spelling of 1144904207 in words is "one billion, one hundred forty-four million, nine hundred four thousand, two hundred seven".