1144204685 has 8 divisors (see below), whose sum is σ = 1478664600. Its totient is φ = 844951104.

The previous prime is 1144204679. The next prime is 1144204709. The reversal of 1144204685 is 5864024411.

It can be written as a sum of positive squares in 4 ways, for example, as 8649481 + 1135555204 = 2941^2 + 33698^2 .

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 1144204685 - 2¹⁶ = 1144139149 is a prime.

It is a super-2 number, since 2×1144204685² = 2618408722351898450, which contains 22 as substring.

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, 8801510 + ... + 8801639.

It is an arithmetic number, because the mean of its divisors is an integer number (184833075).

Almost surely, 2^1144204685 is an apocalyptic number.

It is an amenable number.

1144204685 is a deficient number, since it is larger than the sum of its proper divisors (334459915).

1144204685 is a wasteful number, since it uses less digits than its factorization.

1144204685 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17603167.

The product of its (nonzero) digits is 30720, while the sum is 35.

The square root of 1144204685 is about 33826.0947346867. The cubic root of 1144204685 is about 1045.9266781372.

The spelling of 1144204685 in words is "one billion, one hundred forty-four million, two hundred four thousand, six hundred eighty-five".