75320751 has 8 divisors (see below), whose sum is σ = 109557504. Its totient is φ = 45648920.

The previous prime is 75320747. The next prime is 75320767. The reversal of 75320751 is 15702357.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 75320751 - 2² = 75320747 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (75320771) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1141191 + ... + 1141256.

It is an arithmetic number, because the mean of its divisors is an integer number (13694688).

Almost surely, 2^75320751 is an apocalyptic number.

75320751 is a deficient number, since it is larger than the sum of its proper divisors (34236753).

75320751 is a wasteful number, since it uses less digits than its factorization.

75320751 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2282461.

The product of its (nonzero) digits is 7350, while the sum is 30.

The square root of 75320751 is about 8678.7528481920. The cubic root of 75320751 is about 422.3166595956.

The spelling of 75320751 in words is "seventy-five million, three hundred twenty thousand, seven hundred fifty-one".