7740147137 has 2 divisors, whose sum is σ = 7740147138. Its totient is φ = 7740147136.

The previous prime is 7740147133. The next prime is 7740147143. The reversal of 7740147137 is 7317410477.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 4459034176 + 3281112961 = 66776^2 + 57281^2 .

It is a cyclic number.

It is not a de Polignac number, because 7740147137 - 2² = 7740147133 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 7740147094 and 7740147103.

It is not a weakly prime, because it can be changed into another prime (7740147133) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3870073568 + 3870073569.

It is an arithmetic number, because the mean of its divisors is an integer number (3870073569).

Almost surely, 2^7740147137 is an apocalyptic number.

It is an amenable number.

7740147137 is a deficient number, since it is larger than the sum of its proper divisors (1).

7740147137 is an equidigital number, since it uses as much as digits as its factorization.

7740147137 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 115248, while the sum is 41.

The square root of 7740147137 is about 87978.1060093930. The cubic root of 7740147137 is about 1978.1068134121.

The spelling of 7740147137 in words is "seven billion, seven hundred forty million, one hundred forty-seven thousand, one hundred thirty-seven".