1144555231 has 8 divisors (see below), whose sum is σ = 1209600000. Its totient is φ = 1079991000.

The previous prime is 1144555229. The next prime is 1144555241. The reversal of 1144555231 is 1325554411.

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 1144555231 - 2¹ = 1144555229 is a prime.

It is a super-2 number, since 2×1144555231² = 2620013353618926722, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1144555193 and 1144555202.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1144555241) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 115231 + ... + 124768.

It is an arithmetic number, because the mean of its divisors is an integer number (151200000).

Almost surely, 2^1144555231 is an apocalyptic number.

1144555231 is a deficient number, since it is larger than the sum of its proper divisors (65044769).

1144555231 is a wasteful number, since it uses less digits than its factorization.

1144555231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 240269.

The product of its digits is 12000, while the sum is 31.

The square root of 1144555231 is about 33831.2759292345. The cubic root of 1144555231 is about 1046.0334795344.

The spelling of 1144555231 in words is "one billion, one hundred forty-four million, five hundred fifty-five thousand, two hundred thirty-one".