75157643 has 8 divisors (see below), whose sum is σ = 82056240. Its totient is φ = 68270080.

The previous prime is 75157631. The next prime is 75157651. The reversal of 75157643 is 34675157.

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 75157643 - 2²⁶ = 8048779 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 75157597 and 75157606.

It is not an unprimeable number, because it can be changed into a prime (75157603) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 18971 + ... + 22587.

It is an arithmetic number, because the mean of its divisors is an integer number (10257030).

Almost surely, 2^75157643 is an apocalyptic number.

75157643 is a deficient number, since it is larger than the sum of its proper divisors (6898597).

75157643 is a wasteful number, since it uses less digits than its factorization.

75157643 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5517.

The product of its digits is 88200, while the sum is 38.

The square root of 75157643 is about 8669.3507830748. The cubic root of 75157643 is about 422.0115953329.

The spelling of 75157643 in words is "seventy-five million, one hundred fifty-seven thousand, six hundred forty-three".