1379942461 has 2 divisors, whose sum is σ = 1379942462. Its totient is φ = 1379942460.

The previous prime is 1379942449. The next prime is 1379942471. The reversal of 1379942461 is 1642499731.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 966836836 + 413105625 = 31094^2 + 20325^2 .

It is a cyclic number.

It is not a de Polignac number, because 1379942461 - 2¹¹ = 1379940413 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1379942441) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 689971230 + 689971231.

It is an arithmetic number, because the mean of its divisors is an integer number (689971231).

Almost surely, 2^1379942461 is an apocalyptic number.

It is an amenable number.

1379942461 is a deficient number, since it is larger than the sum of its proper divisors (1).

1379942461 is an equidigital number, since it uses as much as digits as its factorization.

1379942461 is an evil number, because the sum of its binary digits is even.

The product of its digits is 326592, while the sum is 46.

The square root of 1379942461 is about 37147.5767850340. The cubic root of 1379942461 is about 1113.3208078140.

The spelling of 1379942461 in words is "one billion, three hundred seventy-nine million, nine hundred forty-two thousand, four hundred sixty-one".