1102146391 has 2 divisors, whose sum is σ = 1102146392. Its totient is φ = 1102146390.

The previous prime is 1102146377. The next prime is 1102146439. The reversal of 1102146391 is 1936412011.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1102146391 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1102146191) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 551073195 + 551073196.

It is an arithmetic number, because the mean of its divisors is an integer number (551073196).

Almost surely, 2^1102146391 is an apocalyptic number.

1102146391 is a deficient number, since it is larger than the sum of its proper divisors (1).

1102146391 is an equidigital number, since it uses as much as digits as its factorization.

1102146391 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1296, while the sum is 28.

The square root of 1102146391 is about 33198.5901959707. The cubic root of 1102146391 is about 1032.9510964217.

The spelling of 1102146391 in words is "one billion, one hundred two million, one hundred forty-six thousand, three hundred ninety-one".