7140401 has 2 divisors, whose sum is σ = 7140402. Its totient is φ = 7140400.

The previous prime is 7140383. The next prime is 7140403. The reversal of 7140401 is 1040417.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 6885376 + 255025 = 2624^2 + 505^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-7140401 is a prime.

Together with 7140403, it forms a pair of twin primes.

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 7140401.

It is not a weakly prime, because it can be changed into another prime (7140403) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3570200 + 3570201.

It is an arithmetic number, because the mean of its divisors is an integer number (3570201).

Almost surely, 2^7140401 is an apocalyptic number.

It is an amenable number.

7140401 is a deficient number, since it is larger than the sum of its proper divisors (1).

7140401 is an equidigital number, since it uses as much as digits as its factorization.

7140401 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 112, while the sum is 17.

The square root of 7140401 is about 2672.1528773631. The cubic root of 7140401 is about 192.5636018543.

Adding to 7140401 its reverse (1040417), we get a palindrome (8180818).

The spelling of 7140401 in words is "seven million, one hundred forty thousand, four hundred one".