1340134023 has 8 divisors (see below), whose sum is σ = 1787497200. Its totient is φ = 893096768.

The previous prime is 1340134013. The next prime is 1340134063. The reversal of 1340134023 is 3204310431.

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 1340134023 - 2⁴ = 1340134007 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1340134013) 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, 71718 + ... + 88451.

It is an arithmetic number, because the mean of its divisors is an integer number (223437150).

Almost surely, 2^1340134023 is an apocalyptic number.

1340134023 is a deficient number, since it is larger than the sum of its proper divisors (447363177).

1340134023 is a wasteful number, since it uses less digits than its factorization.

1340134023 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 162961.

The product of its (nonzero) digits is 864, while the sum is 21.

The square root of 1340134023 is about 36607.8410043532. The cubic root of 1340134023 is about 1102.5105256578.

Adding to 1340134023 its reverse (3204310431), we get a palindrome (4544444454).

The spelling of 1340134023 in words is "one billion, three hundred forty million, one hundred thirty-four thousand, twenty-three".