1144727145 has 48 divisors (see below), whose sum is σ = 2025129600. Its totient is φ = 598003200.

The previous prime is 1144727141. The next prime is 1144727183. The reversal of 1144727145 is 5417274411.

1144727145 is a `hidden beast` number, since 114 + 472 + 71 + 4 + 5 = 666.

It is not a de Polignac number, because 1144727145 - 2² = 1144727141 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1144727141) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 952545 + ... + 953745.

It is an arithmetic number, because the mean of its divisors is an integer number (42190200).

Almost surely, 2^1144727145 is an apocalyptic number.

1144727145 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1144727145 is a deficient number, since it is larger than the sum of its proper divisors (880402455).

1144727145 is a wasteful number, since it uses less digits than its factorization.

1144727145 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1630 (or 1627 counting only the distinct ones).

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

The square root of 1144727145 is about 33833.8165893238. The cubic root of 1144727145 is about 1046.0858488717.

The spelling of 1144727145 in words is "one billion, one hundred forty-four million, seven hundred twenty-seven thousand, one hundred forty-five".