1144571274 has 192 divisors, whose sum is σ = 3381460992. Its totient is φ = 270604800.

The previous prime is 1144571249. The next prime is 1144571279. The reversal of 1144571274 is 4721754411.

1144571274 is a `hidden beast` number, since 1 + 14 + 4 + 571 + 2 + 74 = 666.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (1144571279) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 729639 + ... + 731205.

It is an arithmetic number, because the mean of its divisors is an integer number (17611776).

Almost surely, 2^1144571274 is an apocalyptic number.

1144571274 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 1144571274, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1690730496).

1144571274 is an abundant number, since it is smaller than the sum of its proper divisors (2236889718).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1144571274 is a wasteful number, since it uses less digits than its factorization.

1144571274 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1641 (or 1638 counting only the distinct ones).

The product of its digits is 31360, while the sum is 36.

The square root of 1144571274 is about 33831.5130314918. The cubic root of 1144571274 is about 1046.0383668583.

The spelling of 1144571274 in words is "one billion, one hundred forty-four million, five hundred seventy-one thousand, two hundred seventy-four".