7508161 has 2 divisors, whose sum is σ = 7508162. Its totient is φ = 7508160.

The previous prime is 7508147. The next prime is 7508167. The reversal of 7508161 is 1618057.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 6031936 + 1476225 = 2456^2 + 1215^2 .

It is a cyclic number.

It is not a de Polignac number, because 7508161 - 2⁹ = 7507649 is a prime.

It is not a weakly prime, because it can be changed into another prime (7508167) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3754080 + 3754081.

It is an arithmetic number, because the mean of its divisors is an integer number (3754081).

Almost surely, 2^7508161 is an apocalyptic number.

It is an amenable number.

7508161 is a deficient number, since it is larger than the sum of its proper divisors (1).

7508161 is an equidigital number, since it uses as much as digits as its factorization.

7508161 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1680, while the sum is 28.

The square root of 7508161 is about 2740.1023703504. The cubic root of 7508161 is about 195.8143546217.

It can be divided in two parts, 750 and 8161, that added together give a triangular number (8911 = T₁₃₃).

The spelling of 7508161 in words is "seven million, five hundred eight thousand, one hundred sixty-one".