1340134144 has 36 divisors (see below), whose sum is σ = 2815834840. Its totient is φ = 634798080.

The previous prime is 1340134141. The next prime is 1340134151. The reversal of 1340134144 is 4414310431.

It is a super-2 number, since 2×1340134144² = 3591919047829225472, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1340134141) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 132897 + ... + 142624.

Almost surely, 2^1340134144 is an apocalyptic number.

It is an amenable number.

1340134144 is an abundant number, since it is smaller than the sum of its proper divisors (1475700696).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1340134144 is an equidigital number, since it uses as much as digits as its factorization.

1340134144 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 275556 (or 275542 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 25.

The square root of 1340134144 is about 36607.8426570045. The cubic root of 1340134144 is about 1102.5105588395.

Adding to 1340134144 its reverse (4414310431), we get a palindrome (5754444575).

The spelling of 1340134144 in words is "one billion, three hundred forty million, one hundred thirty-four thousand, one hundred forty-four".