340251 has 4 divisors (see below), whose sum is σ = 453672. Its totient is φ = 226832.

The previous prime is 340237. The next prime is 340261. The reversal of 340251 is 152043.

340251 is an esthetic number in base 9, because in such base its adjacent digits differ by 1.

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

It is a cyclic number.

It is not a de Polignac number, because 340251 - 2¹¹ = 338203 is a prime.

It is a super-3 number, since 3×340251³ = 118173333230499753, which contains 333 as substring.

It is a D-number.

340251 is a lucky number.

It is a nialpdrome in base 13.

It is a self number, because there is not a number n which added to its sum of digits gives 340251.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 340251.

It is not an unprimeable number, because it can be changed into a prime (340201) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 56706 + ... + 56711.

It is an arithmetic number, because the mean of its divisors is an integer number (113418).

2³⁴⁰²⁵¹ is an apocalyptic number.

340251 is a deficient number, since it is larger than the sum of its proper divisors (113421).

340251 is a wasteful number, since it uses less digits than its factorization.

340251 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 113420.

The product of its (nonzero) digits is 120, while the sum is 15.

The square root of 340251 is about 583.3103805008. The cubic root of 340251 is about 69.8124913674.

Adding to 340251 its reverse (152043), we get a palindrome (492294).

The spelling of 340251 in words is "three hundred forty thousand, two hundred fifty-one".