523075121 has 4 divisors (see below), whose sum is σ = 539948544. Its totient is φ = 506201700.

The previous prime is 523075109. The next prime is 523075123. The reversal of 523075121 is 121570325.

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.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-523075121 is a prime.

It is a super-4 number, since 4×523075121⁴ (a number of 36 digits) contains 4444 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (523075123) 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, 8436665 + ... + 8436726.

It is an arithmetic number, because the mean of its divisors is an integer number (134987136).

Almost surely, 2^523075121 is an apocalyptic number.

It is an amenable number.

523075121 is a deficient number, since it is larger than the sum of its proper divisors (16873423).

523075121 is a wasteful number, since it uses less digits than its factorization.

523075121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16873422.

The product of its (nonzero) digits is 2100, while the sum is 26.

The square root of 523075121 is about 22870.8355990768. The cubic root of 523075121 is about 805.7271934152.

The spelling of 523075121 in words is "five hundred twenty-three million, seventy-five thousand, one hundred twenty-one".