11145601409 has 2 divisors, whose sum is σ = 11145601410. Its totient is φ = 11145601408.

The previous prime is 11145601403. The next prime is 11145601471. The reversal of 11145601409 is 90410654111.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 10498051600 + 647549809 = 102460^2 + 25447^2 .

It is an emirp because it is prime and its reverse (90410654111) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-11145601409 is a prime.

It is not a weakly prime, because it can be changed into another prime (11145601403) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5572800704 + 5572800705.

It is an arithmetic number, because the mean of its divisors is an integer number (5572800705).

Almost surely, 2^11145601409 is an apocalyptic number.

It is an amenable number.

11145601409 is a deficient number, since it is larger than the sum of its proper divisors (1).

11145601409 is an equidigital number, since it uses as much as digits as its factorization.

11145601409 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4320, while the sum is 32.

The spelling of 11145601409 in words is "eleven billion, one hundred forty-five million, six hundred one thousand, four hundred nine".