1145549241 has 12 divisors (see below), whose sum is σ = 1655058132. Its totient is φ = 763526016.

The previous prime is 1145549221. The next prime is 1145549243. The reversal of 1145549241 is 1429455411.

1145549241 is a `hidden beast` number, since 1 + 14 + 554 + 92 + 4 + 1 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 467467641 + 678081600 = 21621^2 + 26040^2 .

It is not a de Polignac number, because 1145549241 - 2⁶ = 1145549177 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1145549196 and 1145549205.

It is not an unprimeable number, because it can be changed into a prime (1145549243) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 37005 + ... + 60501.

It is an arithmetic number, because the mean of its divisors is an integer number (137921511).

Almost surely, 2^1145549241 is an apocalyptic number.

It is an amenable number.

1145549241 is a deficient number, since it is larger than the sum of its proper divisors (509508891).

1145549241 is a wasteful number, since it uses less digits than its factorization.

1145549241 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28920 (or 28917 counting only the distinct ones).

The product of its digits is 28800, while the sum is 36.

The square root of 1145549241 is about 33845.9634373141. The cubic root of 1145549241 is about 1046.3362075735.

The spelling of 1145549241 in words is "one billion, one hundred forty-five million, five hundred forty-nine thousand, two hundred forty-one".