1145511413 has 2 divisors, whose sum is σ = 1145511414. Its totient is φ = 1145511412.

The previous prime is 1145511383. The next prime is 1145511421. The reversal of 1145511413 is 3141155411.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1012639684 + 132871729 = 31822^2 + 11527^2 .

It is a cyclic number.

It is not a de Polignac number, because 1145511413 - 2¹⁰ = 1145510389 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1145511713) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 572755706 + 572755707.

It is an arithmetic number, because the mean of its divisors is an integer number (572755707).

Almost surely, 2^1145511413 is an apocalyptic number.

It is an amenable number.

1145511413 is a deficient number, since it is larger than the sum of its proper divisors (1).

1145511413 is an equidigital number, since it uses as much as digits as its factorization.

1145511413 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1200, while the sum is 26.

The square root of 1145511413 is about 33845.4046068296. The cubic root of 1145511413 is about 1046.3246901749.

Adding to 1145511413 its reverse (3141155411), we get a palindrome (4286666824).

The spelling of 1145511413 in words is "one billion, one hundred forty-five million, five hundred eleven thousand, four hundred thirteen".