1340210255 has 8 divisors (see below), whose sum is σ = 1647478224. Its totient is φ = 1046017600.

The previous prime is 1340210251. The next prime is 1340210257. The reversal of 1340210255 is 5520120431.

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

It is not a de Polignac number, because 1340210255 - 2² = 1340210251 is a prime.

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 1340210255.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1340210251) 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, 3268601 + ... + 3269010.

It is an arithmetic number, because the mean of its divisors is an integer number (205934778).

Almost surely, 2^1340210255 is an apocalyptic number.

1340210255 is a deficient number, since it is larger than the sum of its proper divisors (307267969).

1340210255 is an equidigital number, since it uses as much as digits as its factorization.

1340210255 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6537657.

The product of its (nonzero) digits is 1200, while the sum is 23.

The square root of 1340210255 is about 36608.8821872507. The cubic root of 1340210255 is about 1102.5314302806.

Adding to 1340210255 its reverse (5520120431), we get a palindrome (6860330686).

The spelling of 1340210255 in words is "one billion, three hundred forty million, two hundred ten thousand, two hundred fifty-five".