1102540643 has 2 divisors, whose sum is σ = 1102540644. Its totient is φ = 1102540642.

The previous prime is 1102540577. The next prime is 1102540667. The reversal of 1102540643 is 3460452011.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1102540643 - 2²² = 1098346339 is a prime.

It is not a weakly prime, because it can be changed into another prime (1102540693) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 551270321 + 551270322.

It is an arithmetic number, because the mean of its divisors is an integer number (551270322).

Almost surely, 2^1102540643 is an apocalyptic number.

1102540643 is a deficient number, since it is larger than the sum of its proper divisors (1).

1102540643 is an equidigital number, since it uses as much as digits as its factorization.

1102540643 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2880, while the sum is 26.

The square root of 1102540643 is about 33204.5274473226. The cubic root of 1102540643 is about 1033.0742483883.

Adding to 1102540643 its reverse (3460452011), we get a palindrome (4562992654).

The spelling of 1102540643 in words is "one billion, one hundred two million, five hundred forty thousand, six hundred forty-three".