1377466117 has 2 divisors, whose sum is σ = 1377466118. Its totient is φ = 1377466116.

The previous prime is 1377466109. The next prime is 1377466133. The reversal of 1377466117 is 7116647731.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 916333441 + 461132676 = 30271^2 + 21474^2 .

It is an emirp because it is prime and its reverse (7116647731) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1377466117 - 2³ = 1377466109 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1377466817) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 688733058 + 688733059.

It is an arithmetic number, because the mean of its divisors is an integer number (688733059).

Almost surely, 2^1377466117 is an apocalyptic number.

It is an amenable number.

1377466117 is a deficient number, since it is larger than the sum of its proper divisors (1).

1377466117 is an equidigital number, since it uses as much as digits as its factorization.

1377466117 is an evil number, because the sum of its binary digits is even.

The product of its digits is 148176, while the sum is 43.

The square root of 1377466117 is about 37114.2306534838. The cubic root of 1377466117 is about 1112.6544476393.

The spelling of 1377466117 in words is "one billion, three hundred seventy-seven million, four hundred sixty-six thousand, one hundred seventeen".