1340545100 has 18 divisors (see below), whose sum is σ = 2908983084. Its totient is φ = 536218000.

The previous prime is 1340545079. The next prime is 1340545123. The reversal of 1340545100 is 15450431.

It is a super-2 number, since 2×1340545100² = 3594122330268020000, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 6702626 + ... + 6702825.

Almost surely, 2^1340545100 is an apocalyptic number.

1340545100 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1340545100 is an abundant number, since it is smaller than the sum of its proper divisors (1568437984).

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

1340545100 is a wasteful number, since it uses less digits than its factorization.

1340545100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13405465 (or 13405458 counting only the distinct ones).

The product of its (nonzero) digits is 1200, while the sum is 23.

The square root of 1340545100 is about 36613.4551770247. The cubic root of 1340545100 is about 1102.6232433361.

Adding to 1340545100 its reverse (15450431), we get a palindrome (1355995531).

The spelling of 1340545100 in words is "one billion, three hundred forty million, five hundred forty-five thousand, one hundred".