75322681 has 4 divisors (see below), whose sum is σ = 86083072. Its totient is φ = 64562292.

The previous prime is 75322679. The next prime is 75322697. The reversal of 75322681 is 18622357.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 18622357 = 13 ⋅1432489.

It is a cyclic number.

It is not a de Polignac number, because 75322681 - 2¹ = 75322679 is a prime.

It is a super-2 number, since 2×75322681² = 11347012546055522, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (75322601) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5380185 + ... + 5380198.

It is an arithmetic number, because the mean of its divisors is an integer number (21520768).

Almost surely, 2^75322681 is an apocalyptic number.

It is an amenable number.

75322681 is a deficient number, since it is larger than the sum of its proper divisors (10760391).

75322681 is a wasteful number, since it uses less digits than its factorization.

75322681 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10760390.

The product of its digits is 20160, while the sum is 34.

The square root of 75322681 is about 8678.8640385709. The cubic root of 75322681 is about 422.3202666768.

The spelling of 75322681 in words is "seventy-five million, three hundred twenty-two thousand, six hundred eighty-one".