1381149827 has 2 divisors, whose sum is σ = 1381149828. Its totient is φ = 1381149826.

The previous prime is 1381149787. The next prime is 1381149863. The reversal of 1381149827 is 7289411831.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1381149827 - 2⁸ = 1381149571 is a prime.

It is not a weakly prime, because it can be changed into another prime (1381149127) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 690574913 + 690574914.

It is an arithmetic number, because the mean of its divisors is an integer number (690574914).

Almost surely, 2^1381149827 is an apocalyptic number.

1381149827 is a deficient number, since it is larger than the sum of its proper divisors (1).

1381149827 is an equidigital number, since it uses as much as digits as its factorization.

1381149827 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 96768, while the sum is 44.

The square root of 1381149827 is about 37163.8241708250. The cubic root of 1381149827 is about 1113.6454092357.

The spelling of 1381149827 in words is "one billion, three hundred eighty-one million, one hundred forty-nine thousand, eight hundred twenty-seven".