345431523 has 4 divisors (see below), whose sum is σ = 460575368. Its totient is φ = 230287680.

The previous prime is 345431507. The next prime is 345431531. The reversal of 345431523 is 325134543.

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

It is not a de Polignac number, because 345431523 - 2⁴ = 345431507 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (345432523) 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, 57571918 + ... + 57571923.

It is an arithmetic number, because the mean of its divisors is an integer number (115143842).

Almost surely, 2^345431523 is an apocalyptic number.

345431523 is a deficient number, since it is larger than the sum of its proper divisors (115143845).

345431523 is a wasteful number, since it uses less digits than its factorization.

345431523 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 115143844.

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

The square root of 345431523 is about 18585.7881995895. The cubic root of 345431523 is about 701.6502039745.

The spelling of 345431523 in words is "three hundred forty-five million, four hundred thirty-one thousand, five hundred twenty-three".