1356555136 has 32 divisors (see below), whose sum is σ = 2736741600. Its totient is φ = 669686784.

The previous prime is 1356555113. The next prime is 1356555163. The reversal of 1356555136 is 6315556531.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (32).

It is a congruent number.

It is an unprimeable number.

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, 56965 + ... + 77188.

It is an arithmetic number, because the mean of its divisors is an integer number (85523175).

Almost surely, 2^1356555136 is an apocalyptic number.

1356555136 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

1356555136 is an abundant number, since it is smaller than the sum of its proper divisors (1380186464).

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

1356555136 is an equidigital number, since it uses as much as digits as its factorization.

1356555136 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 134246 (or 134234 counting only the distinct ones).

The product of its digits is 202500, while the sum is 40.

The square root of 1356555136 is about 36831.4422199294. The cubic root of 1356555136 is about 1106.9954011223.

The spelling of 1356555136 in words is "one billion, three hundred fifty-six million, five hundred fifty-five thousand, one hundred thirty-six".