7138577 has 2 divisors, whose sum is σ = 7138578. Its totient is φ = 7138576.

The previous prime is 7138561. The next prime is 7138603. The reversal of 7138577 is 7758317.

7138577 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 6431296 + 707281 = 2536^2 + 841^2 .

It is a cyclic number.

It is not a de Polignac number, because 7138577 - 2⁴ = 7138561 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 7138577.

It is not a weakly prime, because it can be changed into another prime (7138177) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3569288 + 3569289.

It is an arithmetic number, because the mean of its divisors is an integer number (3569289).

Almost surely, 2^7138577 is an apocalyptic number.

It is an amenable number.

7138577 is a deficient number, since it is larger than the sum of its proper divisors (1).

7138577 is an equidigital number, since it uses as much as digits as its factorization.

7138577 is an evil number, because the sum of its binary digits is even.

The product of its digits is 41160, while the sum is 38.

The square root of 7138577 is about 2671.8115577263. The cubic root of 7138577 is about 192.5472038060.

The spelling of 7138577 in words is "seven million, one hundred thirty-eight thousand, five hundred seventy-seven".