1374130777 has 2 divisors, whose sum is σ = 1374130778. Its totient is φ = 1374130776.

The previous prime is 1374130721. The next prime is 1374130783. The reversal of 1374130777 is 7770314731.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1291611721 + 82519056 = 35939^2 + 9084^2 .

It is an emirp because it is prime and its reverse (7770314731) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1374130777 - 2¹⁵ = 1374098009 is a prime.

It is not a weakly prime, because it can be changed into another prime (1374130717) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 687065388 + 687065389.

It is an arithmetic number, because the mean of its divisors is an integer number (687065389).

Almost surely, 2^1374130777 is an apocalyptic number.

It is an amenable number.

1374130777 is a deficient number, since it is larger than the sum of its proper divisors (1).

1374130777 is an equidigital number, since it uses as much as digits as its factorization.

1374130777 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 86436, while the sum is 40.

The square root of 1374130777 is about 37069.2699820215. The cubic root of 1374130777 is about 1111.7556765403.

The spelling of 1374130777 in words is "one billion, three hundred seventy-four million, one hundred thirty thousand, seven hundred seventy-seven".