535040123 has 4 divisors (see below), whose sum is σ = 535852680. Its totient is φ = 534227568.

The previous prime is 535040117. The next prime is 535040131. The reversal of 535040123 is 321040535.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 535040123 - 2¹² = 535036027 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (535040173) 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, 405290 + ... + 406607.

It is an arithmetic number, because the mean of its divisors is an integer number (133963170).

Almost surely, 2^535040123 is an apocalyptic number.

535040123 is a deficient number, since it is larger than the sum of its proper divisors (812557).

535040123 is an equidigital number, since it uses as much as digits as its factorization.

535040123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 812556.

The product of its (nonzero) digits is 1800, while the sum is 23.

The square root of 535040123 is about 23130.9343304589. The cubic root of 535040123 is about 811.8244315145.

Adding to 535040123 its reverse (321040535), we get a palindrome (856080658).

The spelling of 535040123 in words is "five hundred thirty-five million, forty thousand, one hundred twenty-three".