1116145553 has 2 divisors, whose sum is σ = 1116145554. Its totient is φ = 1116145552.

The previous prime is 1116145549. The next prime is 1116145559. The reversal of 1116145553 is 3555416111.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 632673409 + 483472144 = 25153^2 + 21988^2 .

It is a cyclic number.

It is not a de Polignac number, because 1116145553 - 2² = 1116145549 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (1116145559) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 558072776 + 558072777.

It is an arithmetic number, because the mean of its divisors is an integer number (558072777).

Almost surely, 2^1116145553 is an apocalyptic number.

It is an amenable number.

1116145553 is a deficient number, since it is larger than the sum of its proper divisors (1).

1116145553 is an equidigital number, since it uses as much as digits as its factorization.

1116145553 is an evil number, because the sum of its binary digits is even.

The product of its digits is 9000, while the sum is 32.

The square root of 1116145553 is about 33408.7646134963. The cubic root of 1116145553 is about 1037.3061300887.

The spelling of 1116145553 in words is "one billion, one hundred sixteen million, one hundred forty-five thousand, five hundred fifty-three".