1368135545 has 16 divisors (see below), whose sum is σ = 1882234368. Its totient is φ = 935183040.

The previous prime is 1368135541. The next prime is 1368135553. The reversal of 1368135545 is 5455318631.

It is not a de Polignac number, because 1368135545 - 2² = 1368135541 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1368135541) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 50561 + ... + 72750.

It is an arithmetic number, because the mean of its divisors is an integer number (117639648).

Almost surely, 2^1368135545 is an apocalyptic number.

It is an amenable number.

1368135545 is a deficient number, since it is larger than the sum of its proper divisors (514098823).

1368135545 is a wasteful number, since it uses less digits than its factorization.

1368135545 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 123640.

The product of its digits is 216000, while the sum is 41.

The square root of 1368135545 is about 36988.3163309713. The cubic root of 1368135545 is about 1110.1364832312.

The spelling of 1368135545 in words is "one billion, three hundred sixty-eight million, one hundred thirty-five thousand, five hundred forty-five".