1340142213 has 8 divisors (see below), whose sum is σ = 1790734176. Its totient is φ = 891489200.

The previous prime is 1340142211. The next prime is 1340142263. The reversal of 1340142213 is 3122410431.

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

It is a cyclic number.

It is not a de Polignac number, because 1340142213 - 2¹ = 1340142211 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1340142213.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1340142211) 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, 483123 + ... + 485888.

It is an arithmetic number, because the mean of its divisors is an integer number (223841772).

Almost surely, 2^1340142213 is an apocalyptic number.

It is an amenable number.

1340142213 is a deficient number, since it is larger than the sum of its proper divisors (450591963).

1340142213 is an equidigital number, since it uses as much as digits as its factorization.

1340142213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 969475.

The product of its (nonzero) digits is 576, while the sum is 21.

The square root of 1340142213 is about 36607.9528654635. The cubic root of 1340142213 is about 1102.5127715881.

Adding to 1340142213 its reverse (3122410431), we get a palindrome (4462552644).

The spelling of 1340142213 in words is "one billion, three hundred forty million, one hundred forty-two thousand, two hundred thirteen".