1377105461 has 2 divisors, whose sum is σ = 1377105462. Its totient is φ = 1377105460.

The previous prime is 1377105437. The next prime is 1377105511. The reversal of 1377105461 is 1645017731.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1326780625 + 50324836 = 36425^2 + 7094^2 .

It is a cyclic number.

It is not a de Polignac number, because 1377105461 - 2²² = 1372911157 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1377105061) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 688552730 + 688552731.

It is an arithmetic number, because the mean of its divisors is an integer number (688552731).

Almost surely, 2^1377105461 is an apocalyptic number.

It is an amenable number.

1377105461 is a deficient number, since it is larger than the sum of its proper divisors (1).

1377105461 is an equidigital number, since it uses as much as digits as its factorization.

1377105461 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 17640, while the sum is 35.

The square root of 1377105461 is about 37109.3716061051. The cubic root of 1377105461 is about 1112.5573319947.

The spelling of 1377105461 in words is "one billion, three hundred seventy-seven million, one hundred five thousand, four hundred sixty-one".