1145541413 has 4 divisors (see below), whose sum is σ = 1212926220. Its totient is φ = 1078156608.

The previous prime is 1145541403. The next prime is 1145541437. The reversal of 1145541413 is 3141455411.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 3141455411 = 3457 ⋅908723.

It can be written as a sum of positive squares in 2 ways, for example, as 630160609 + 515380804 = 25103^2 + 22702^2 .

It is a cyclic number.

It is not a de Polignac number, because 1145541413 - 2⁸ = 1145541157 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1145541403) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 33692378 + ... + 33692411.

It is an arithmetic number, because the mean of its divisors is an integer number (303231555).

Almost surely, 2^1145541413 is an apocalyptic number.

It is an amenable number.

1145541413 is a deficient number, since it is larger than the sum of its proper divisors (67384807).

1145541413 is an equidigital number, since it uses as much as digits as its factorization.

1145541413 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 67384806.

The product of its digits is 4800, while the sum is 29.

The square root of 1145541413 is about 33845.8477955568. The cubic root of 1145541413 is about 1046.3338242223. Note that the first 3 decimals are identical.

Adding to 1145541413 its reverse (3141455411), we get a palindrome (4286996824).

The spelling of 1145541413 in words is "one billion, one hundred forty-five million, five hundred forty-one thousand, four hundred thirteen".