1340202133 has 4 divisors (see below), whose sum is σ = 1368717120. Its totient is φ = 1311687148.

The previous prime is 1340202121. The next prime is 1340202167. The reversal of 1340202133 is 3312020431.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1340202133 is a prime.

It is a super-2 number, since 2×1340202133² = 3592283514595499378, 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 1340202133.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1340202173) 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, 14257423 + ... + 14257516.

It is an arithmetic number, because the mean of its divisors is an integer number (342179280).

Almost surely, 2^1340202133 is an apocalyptic number.

It is an amenable number.

1340202133 is a deficient number, since it is larger than the sum of its proper divisors (28514987).

1340202133 is an equidigital number, since it uses as much as digits as its factorization.

1340202133 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28514986.

The product of its (nonzero) digits is 432, while the sum is 19.

The square root of 1340202133 is about 36608.7712577191. The cubic root of 1340202133 is about 1102.5292030733.

Adding to 1340202133 its reverse (3312020431), we get a palindrome (4652222564).

The spelling of 1340202133 in words is "one billion, three hundred forty million, two hundred two thousand, one hundred thirty-three".