7146857 has 2 divisors, whose sum is σ = 7146858. Its totient is φ = 7146856.

The previous prime is 7146829. The next prime is 7146871. The reversal of 7146857 is 7586417.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 6651241 + 495616 = 2579^2 + 704^2 .

It is a cyclic number.

It is not a de Polignac number, because 7146857 - 2²² = 2952553 is a prime.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 7146857.

It is not a weakly prime, because it can be changed into another prime (7146827) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3573428 + 3573429.

It is an arithmetic number, because the mean of its divisors is an integer number (3573429).

Almost surely, 2^7146857 is an apocalyptic number.

It is an amenable number.

7146857 is a deficient number, since it is larger than the sum of its proper divisors (1).

7146857 is an equidigital number, since it uses as much as digits as its factorization.

7146857 is an evil number, because the sum of its binary digits is even.

The product of its digits is 47040, while the sum is 38.

The square root of 7146857 is about 2673.3606191459. The cubic root of 7146857 is about 192.6216198902.

The spelling of 7146857 in words is "seven million, one hundred forty-six thousand, eight hundred fifty-seven".