1102404649 has 2 divisors, whose sum is σ = 1102404650. Its totient is φ = 1102404648.

The previous prime is 1102404647. The next prime is 1102404659. The reversal of 1102404649 is 9464042011.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 882090000 + 220314649 = 29700^2 + 14843^2 .

It is an emirp because it is prime and its reverse (9464042011) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1102404649 - 2¹ = 1102404647 is a prime.

Together with 1102404647, it forms a pair of twin primes.

It is a self number, because there is not a number n which added to its sum of digits gives 1102404649.

It is not a weakly prime, because it can be changed into another prime (1102404647) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 551202324 + 551202325.

It is an arithmetic number, because the mean of its divisors is an integer number (551202325).

Almost surely, 2^1102404649 is an apocalyptic number.

It is an amenable number.

1102404649 is a deficient number, since it is larger than the sum of its proper divisors (1).

1102404649 is an equidigital number, since it uses as much as digits as its factorization.

1102404649 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 6912, while the sum is 31.

The square root of 1102404649 is about 33202.4795610207. The cubic root of 1102404649 is about 1033.0317714429.

The spelling of 1102404649 in words is "one billion, one hundred two million, four hundred four thousand, six hundred forty-nine".