1376655061 has 2 divisors, whose sum is σ = 1376655062. Its totient is φ = 1376655060.

The previous prime is 1376655047. The next prime is 1376655079. The reversal of 1376655061 is 1605566731.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 846228100 + 530426961 = 29090^2 + 23031^2 .

It is a cyclic number.

It is not a de Polignac number, because 1376655061 - 2⁵ = 1376655029 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1376655361) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 688327530 + 688327531.

It is an arithmetic number, because the mean of its divisors is an integer number (688327531).

Almost surely, 2^1376655061 is an apocalyptic number.

It is an amenable number.

1376655061 is a deficient number, since it is larger than the sum of its proper divisors (1).

1376655061 is an equidigital number, since it uses as much as digits as its factorization.

1376655061 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 113400, while the sum is 40.

The square root of 1376655061 is about 37103.3025619014. The cubic root of 1376655061 is about 1112.4360267215.

The spelling of 1376655061 in words is "one billion, three hundred seventy-six million, six hundred fifty-five thousand, sixty-one".