345311142 has 16 divisors (see below), whose sum is σ = 753406272. Its totient is φ = 104639720.

The previous prime is 345311119. The next prime is 345311147. The reversal of 345311142 is 241113543.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (345311147) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2615928 + ... + 2616059.

It is an arithmetic number, because the mean of its divisors is an integer number (47087892).

Almost surely, 2^345311142 is an apocalyptic number.

345311142 is an abundant number, since it is smaller than the sum of its proper divisors (408095130).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

345311142 is a wasteful number, since it uses less digits than its factorization.

345311142 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5232003.

The product of its digits is 1440, while the sum is 24.

The square root of 345311142 is about 18582.5493945260. The cubic root of 345311142 is about 701.5686874159.

Adding to 345311142 its reverse (241113543), we get a palindrome (586424685).

The spelling of 345311142 in words is "three hundred forty-five million, three hundred eleven thousand, one hundred forty-two".