345851 has 8 divisors (see below), whose sum is σ = 393984. Its totient is φ = 300520.

The previous prime is 345823. The next prime is 345853. The reversal of 345851 is 158543.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a de Polignac number, because none of the positive numbers 2^k-345851 is a prime.

It is a super-2 number, since 2×345851² = 239225828402, which contains 22 as substring.

It is a Duffinian number.

345851 is a modest number, since divided by 851 gives 345 as remainder.

It is a self number, because there is not a number n which added to its sum of digits gives 345851.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 345851.

It is not an unprimeable number, because it can be changed into a prime (345853) 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, 431 + ... + 936.

It is an arithmetic number, because the mean of its divisors is an integer number (49248).

2³⁴⁵⁸⁵¹ is an apocalyptic number.

345851 is a deficient number, since it is larger than the sum of its proper divisors (48133).

345851 is a wasteful number, since it uses less digits than its factorization.

345851 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1401.

The product of its digits is 2400, while the sum is 26.

The square root of 345851 is about 588.0909793561. The cubic root of 345851 is about 70.1934106904.

It can be divided in two parts, 34 and 5851, that added together give a palindrome (5885).

The spelling of 345851 in words is "three hundred forty-five thousand, eight hundred fifty-one".