7140949 has 2 divisors, whose sum is σ = 7140950. Its totient is φ = 7140948.

The previous prime is 7140937. The next prime is 7140953. The reversal of 7140949 is 9490417.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 5130225 + 2010724 = 2265^2 + 1418^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-7140949 is a prime.

It is an Ulam number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (7141949) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3570474 + 3570475.

It is an arithmetic number, because the mean of its divisors is an integer number (3570475).

Almost surely, 2^7140949 is an apocalyptic number.

It is an amenable number.

7140949 is a deficient number, since it is larger than the sum of its proper divisors (1).

7140949 is an equidigital number, since it uses as much as digits as its factorization.

7140949 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 9072, while the sum is 34.

The square root of 7140949 is about 2672.2554144393. The cubic root of 7140949 is about 192.5685279154.

The spelling of 7140949 in words is "seven million, one hundred forty thousand, nine hundred forty-nine".