1377232099 has 2 divisors, whose sum is σ = 1377232100. Its totient is φ = 1377232098.

The previous prime is 1377232097. The next prime is 1377232141. The reversal of 1377232099 is 9902327731.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1377232099 - 2¹ = 1377232097 is a prime.

Together with 1377232097, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (1377232097) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 688616049 + 688616050.

It is an arithmetic number, because the mean of its divisors is an integer number (688616050).

Almost surely, 2^1377232099 is an apocalyptic number.

1377232099 is a deficient number, since it is larger than the sum of its proper divisors (1).

1377232099 is an equidigital number, since it uses as much as digits as its factorization.

1377232099 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 142884, while the sum is 43.

The square root of 1377232099 is about 37111.0778474568. The cubic root of 1377232099 is about 1112.5914343736.

The spelling of 1377232099 in words is "one billion, three hundred seventy-seven million, two hundred thirty-two thousand, ninety-nine".