345143523 has 4 divisors (see below), whose sum is σ = 460191368. Its totient is φ = 230095680.

The previous prime is 345143509. The next prime is 345143549. The reversal of 345143523 is 325341543.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 325341543 = 3 ⋅108447181.

It is not a de Polignac number, because 345143523 - 2⁶ = 345143459 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (345143573) 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, 57523918 + ... + 57523923.

It is an arithmetic number, because the mean of its divisors is an integer number (115047842).

Almost surely, 2^345143523 is an apocalyptic number.

345143523 is a deficient number, since it is larger than the sum of its proper divisors (115047845).

345143523 is a wasteful number, since it uses less digits than its factorization.

345143523 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 115047844.

The product of its digits is 21600, while the sum is 30.

The square root of 345143523 is about 18578.0387285634. The cubic root of 345143523 is about 701.4551518627.

The spelling of 345143523 in words is "three hundred forty-five million, one hundred forty-three thousand, five hundred twenty-three".