1376166461 has 2 divisors, whose sum is σ = 1376166462. Its totient is φ = 1376166460.

The previous prime is 1376166433. The next prime is 1376166469. The reversal of 1376166461 is 1646616731.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1254505561 + 121660900 = 35419^2 + 11030^2 .

It is a cyclic number.

It is not a de Polignac number, because 1376166461 - 2¹⁴ = 1376150077 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1376166469) 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, 688083230 + 688083231.

It is an arithmetic number, because the mean of its divisors is an integer number (688083231).

Almost surely, 2^1376166461 is an apocalyptic number.

It is an amenable number.

1376166461 is a deficient number, since it is larger than the sum of its proper divisors (1).

1376166461 is an equidigital number, since it uses as much as digits as its factorization.

1376166461 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 108864, while the sum is 41.

The square root of 1376166461 is about 37096.7176580355. The cubic root of 1376166461 is about 1112.3044032006.

The spelling of 1376166461 in words is "one billion, three hundred seventy-six million, one hundred sixty-six thousand, four hundred sixty-one".