1379189401 has 2 divisors, whose sum is σ = 1379189402. Its totient is φ = 1379189400.

The previous prime is 1379189381. The next prime is 1379189407. The reversal of 1379189401 is 1049819731.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1319142400 + 60047001 = 36320^2 + 7749^2 .

It is a cyclic number.

It is not a de Polignac number, because 1379189401 - 2¹¹ = 1379187353 is a prime.

It is not a weakly prime, because it can be changed into another prime (1379189407) 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, 689594700 + 689594701.

It is an arithmetic number, because the mean of its divisors is an integer number (689594701).

Almost surely, 2^1379189401 is an apocalyptic number.

It is an amenable number.

1379189401 is a deficient number, since it is larger than the sum of its proper divisors (1).

1379189401 is an equidigital number, since it uses as much as digits as its factorization.

1379189401 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 54432, while the sum is 43.

The square root of 1379189401 is about 37137.4393436058. The cubic root of 1379189401 is about 1113.1182510778.

The spelling of 1379189401 in words is "one billion, three hundred seventy-nine million, one hundred eighty-nine thousand, four hundred one".