75161123 has 4 divisors (see below), whose sum is σ = 76005720. Its totient is φ = 74316528.

The previous prime is 75161111. The next prime is 75161161. The reversal of 75161123 is 32116157.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 32116157 = 107 ⋅300151.

It is a cyclic number.

It is not a de Polignac number, because 75161123 - 2²⁶ = 8052259 is a prime.

It is a super-2 number, since 2×75161123² = 11298388821242258, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 75161092 and 75161101.

It is not an unprimeable number, because it can be changed into a prime (75161173) 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, 422165 + ... + 422342.

It is an arithmetic number, because the mean of its divisors is an integer number (19001430).

Almost surely, 2^75161123 is an apocalyptic number.

75161123 is a deficient number, since it is larger than the sum of its proper divisors (844597).

75161123 is an equidigital number, since it uses as much as digits as its factorization.

75161123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 844596.

The product of its digits is 1260, while the sum is 26.

The square root of 75161123 is about 8669.5514878222. The cubic root of 75161123 is about 422.0181086544.

The spelling of 75161123 in words is "seventy-five million, one hundred sixty-one thousand, one hundred twenty-three".