7081457 has 2 divisors, whose sum is σ = 7081458. Its totient is φ = 7081456.

The previous prime is 7081441. The next prime is 7081499. The reversal of 7081457 is 7541807.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 6806881 + 274576 = 2609^2 + 524^2 .

It is a cyclic number.

It is not a de Polignac number, because 7081457 - 2⁴ = 7081441 is a prime.

It is not a weakly prime, because it can be changed into another prime (7081427) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3540728 + 3540729.

It is an arithmetic number, because the mean of its divisors is an integer number (3540729).

Almost surely, 2^7081457 is an apocalyptic number.

It is an amenable number.

7081457 is a deficient number, since it is larger than the sum of its proper divisors (1).

7081457 is an equidigital number, since it uses as much as digits as its factorization.

7081457 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 7840, while the sum is 32.

The square root of 7081457 is about 2661.1007121114. The cubic root of 7081457 is about 192.0322663509.

The spelling of 7081457 in words is "seven million, eighty-one thousand, four hundred fifty-seven".