75638123 has 8 divisors (see below), whose sum is σ = 82715376. Its totient is φ = 68594400.

The previous prime is 75638113. The next prime is 75638137. The reversal of 75638123 is 32183657.

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 75638123 - 2¹⁰ = 75637099 is a prime.

It is a super-2 number, since 2×75638123² = 11442251301926258, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (75638113) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3536 + ... + 12797.

It is an arithmetic number, because the mean of its divisors is an integer number (10339422).

Almost surely, 2^75638123 is an apocalyptic number.

75638123 is a deficient number, since it is larger than the sum of its proper divisors (7077253).

75638123 is a wasteful number, since it uses less digits than its factorization.

75638123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16765.

The product of its digits is 30240, while the sum is 35.

The square root of 75638123 is about 8697.0180521832. The cubic root of 75638123 is about 422.9089871573.

The spelling of 75638123 in words is "seventy-five million, six hundred thirty-eight thousand, one hundred twenty-three".