7472161 has 2 divisors, whose sum is σ = 7472162. Its totient is φ = 7472160.

The previous prime is 7472123. The next prime is 7472167. The reversal of 7472161 is 1612747.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 4177936 + 3294225 = 2044^2 + 1815^2 .

It is an emirp because it is prime and its reverse (1612747) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 7472161 - 2⁹ = 7471649 is a prime.

It is an alternating number because its digits alternate between odd and even.

7472161 is a lucky number.

It is not a weakly prime, because it can be changed into another prime (7472167) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3736080 + 3736081.

It is an arithmetic number, because the mean of its divisors is an integer number (3736081).

Almost surely, 2^7472161 is an apocalyptic number.

It is an amenable number.

7472161 is a deficient number, since it is larger than the sum of its proper divisors (1).

7472161 is an equidigital number, since it uses as much as digits as its factorization.

7472161 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2352, while the sum is 28.

The square root of 7472161 is about 2733.5253794322. The cubic root of 7472161 is about 195.5008906669.

The spelling of 7472161 in words is "seven million, four hundred seventy-two thousand, one hundred sixty-one".