345002831 has 4 divisors (see below), whose sum is σ = 345122232. Its totient is φ = 344883432.

The previous prime is 345002809. The next prime is 345002839. The reversal of 345002831 is 138200543.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 138200543 = 13 ⋅10630811.

It is a cyclic number.

It is not a de Polignac number, because 345002831 - 2¹⁰ = 345001807 is a prime.

It is a super-2 number, since 2×345002831² = 238053906796029122, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 345002831.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (345002839) 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 3 ways as a sum of consecutive naturals, for example, 55256 + ... + 61181.

It is an arithmetic number, because the mean of its divisors is an integer number (86280558).

Almost surely, 2^345002831 is an apocalyptic number.

345002831 is a deficient number, since it is larger than the sum of its proper divisors (119401).

345002831 is a wasteful number, since it uses less digits than its factorization.

345002831 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 119400.

The product of its (nonzero) digits is 2880, while the sum is 26.

The square root of 345002831 is about 18574.2518288086. The cubic root of 345002831 is about 701.3598267449.

The spelling of 345002831 in words is "three hundred forty-five million, two thousand, eight hundred thirty-one".