350140523 has 4 divisors (see below), whose sum is σ = 365364048. Its totient is φ = 334917000.

The previous prime is 350140513. The next prime is 350140537. The reversal of 350140523 is 325041053.

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 350140523 - 2¹⁰ = 350139499 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (23), and also a Moran number because the ratio is a prime number: 15223501 = 350140523 / (3 + 5 + 0 + 1 + 4 + 0 + 5 + 2 + 3).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (350140513) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7611728 + ... + 7611773.

It is an arithmetic number, because the mean of its divisors is an integer number (91341012).

Almost surely, 2^350140523 is an apocalyptic number.

350140523 is a deficient number, since it is larger than the sum of its proper divisors (15223525).

350140523 is a wasteful number, since it uses less digits than its factorization.

350140523 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15223524.

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

The square root of 350140523 is about 18712.0421921286. The cubic root of 350140523 is about 704.8241755927.

Adding to 350140523 its reverse (325041053), we get a palindrome (675181576).

The spelling of 350140523 in words is "three hundred fifty million, one hundred forty thousand, five hundred twenty-three".