7144457 has 2 divisors, whose sum is σ = 7144458. Its totient is φ = 7144456.

The previous prime is 7144451. The next prime is 7144483. The reversal of 7144457 is 7544417.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 6885376 + 259081 = 2624^2 + 509^2 .

It is a cyclic number.

It is not a de Polignac number, because 7144457 - 2⁸ = 7144201 is a prime.

It is not a weakly prime, because it can be changed into another prime (7144451) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3572228 + 3572229.

It is an arithmetic number, because the mean of its divisors is an integer number (3572229).

Almost surely, 2^7144457 is an apocalyptic number.

It is an amenable number.

7144457 is a deficient number, since it is larger than the sum of its proper divisors (1).

7144457 is an equidigital number, since it uses as much as digits as its factorization.

7144457 is an evil number, because the sum of its binary digits is even.

The product of its digits is 15680, while the sum is 32.

The square root of 7144457 is about 2672.9117082313. The cubic root of 7144457 is about 192.6000559288.

The spelling of 7144457 in words is "seven million, one hundred forty-four thousand, four hundred fifty-seven".