75112769 has 4 divisors (see below), whose sum is σ = 75357744. Its totient is φ = 74867796.

The previous prime is 75112727. The next prime is 75112847. The reversal of 75112769 is 96721157.

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: 96721157 = 13 ⋅7440089.

It is a cyclic number.

It is not a de Polignac number, because 75112769 - 2¹² = 75108673 is a prime.

It is a super-2 number, since 2×75112769² = 11283856133694722, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (75112669) 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, 122027 + ... + 122640.

It is an arithmetic number, because the mean of its divisors is an integer number (18839436).

Almost surely, 2^75112769 is an apocalyptic number.

It is an amenable number.

75112769 is a deficient number, since it is larger than the sum of its proper divisors (244975).

75112769 is a wasteful number, since it uses less digits than its factorization.

75112769 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 244974.

The product of its digits is 26460, while the sum is 38.

The square root of 75112769 is about 8666.7623135748. The cubic root of 75112769 is about 421.9275891570.

The spelling of 75112769 in words is "seventy-five million, one hundred twelve thousand, seven hundred sixty-nine".