75120869 has 8 divisors (see below), whose sum is σ = 77291520. Its totient is φ = 72981216.

The previous prime is 75120847. The next prime is 75120901. The reversal of 75120869 is 96802157.

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 75120869 - 2²⁴ = 58343653 is a prime.

It is a super-2 number, since 2×75120869² = 11286289918630322, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (75120809) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2789 + ... + 12570.

It is an arithmetic number, because the mean of its divisors is an integer number (9661440).

Almost surely, 2^75120869 is an apocalyptic number.

It is an amenable number.

75120869 is a deficient number, since it is larger than the sum of its proper divisors (2170651).

75120869 is a wasteful number, since it uses less digits than its factorization.

75120869 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15499.

The product of its (nonzero) digits is 30240, while the sum is 38.

The square root of 75120869 is about 8667.2296035123. The cubic root of 75120869 is about 421.9427552008.

The spelling of 75120869 in words is "seventy-five million, one hundred twenty thousand, eight hundred sixty-nine".