1340545545 has 40 divisors (see below), whose sum is σ = 2413990656. Its totient is φ = 711703584.

The previous prime is 1340545543. The next prime is 1340545567. The reversal of 1340545545 is 5455450431.

1340545545 is a `hidden beast` number, since 13 + 40 + 54 + 554 + 5 = 666.

1340545545 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 1340545545 - 2¹ = 1340545543 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1340545543) by changing a digit.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 82894 + ... + 97736.

Almost surely, 2^1340545545 is an apocalyptic number.

1340545545 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1340545545 is a deficient number, since it is larger than the sum of its proper divisors (1073445111).

1340545545 is a wasteful number, since it uses less digits than its factorization.

1340545545 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15083 (or 15074 counting only the distinct ones).

The product of its (nonzero) digits is 120000, while the sum is 36.

The square root of 1340545545 is about 36613.4612540251. The cubic root of 1340545545 is about 1102.6233653430.

Adding to 1340545545 its reverse (5455450431), we get a palindrome (6795995976).

The spelling of 1340545545 in words is "one billion, three hundred forty million, five hundred forty-five thousand, five hundred forty-five".