75340961 has 2 divisors, whose sum is σ = 75340962. Its totient is φ = 75340960.

The previous prime is 75340907. The next prime is 75340963. The reversal of 75340961 is 16904357.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 50140561 + 25200400 = 7081^2 + 5020^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-75340961 is a prime.

Together with 75340963, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (75340963) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 37670480 + 37670481.

It is an arithmetic number, because the mean of its divisors is an integer number (37670481).

Almost surely, 2^75340961 is an apocalyptic number.

It is an amenable number.

75340961 is a deficient number, since it is larger than the sum of its proper divisors (1).

75340961 is an equidigital number, since it uses as much as digits as its factorization.

75340961 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 22680, while the sum is 35.

The square root of 75340961 is about 8679.9171078991. The cubic root of 75340961 is about 422.3544281004.

It can be divided in two parts, 753 and 40961, that added together give a palindrome (41714).

The spelling of 75340961 in words is "seventy-five million, three hundred forty thousand, nine hundred sixty-one".