342145431 has 8 divisors (see below), whose sum is σ = 506882160. Its totient is φ = 228096936.

The previous prime is 342145429. The next prime is 342145439. The reversal of 342145431 is 134541243.

It is a happy number.

It is not a de Polignac number, because 342145431 - 2¹ = 342145429 is a prime.

It is a super-2 number, since 2×342145431² = 234126991908351522, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27), and also a Moran number because the ratio is a prime number: 12672053 = 342145431 / (3 + 4 + 2 + 1 + 4 + 5 + 4 + 3 + 1).

It is a junction number, because it is equal to n+sod(n) for n = 342145395 and 342145404.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (342145439) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6336000 + ... + 6336053.

It is an arithmetic number, because the mean of its divisors is an integer number (63360270).

Almost surely, 2^342145431 is an apocalyptic number.

342145431 is a deficient number, since it is larger than the sum of its proper divisors (164736729).

342145431 is a wasteful number, since it uses less digits than its factorization.

342145431 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12672062 (or 12672056 counting only the distinct ones).

The product of its digits is 5760, while the sum is 27.

The square root of 342145431 is about 18497.1735949036. The cubic root of 342145431 is about 699.4181770812.

Adding to 342145431 its reverse (134541243), we get a palindrome (476686674).

The spelling of 342145431 in words is "three hundred forty-two million, one hundred forty-five thousand, four hundred thirty-one".