1369123560 has 640 divisors, whose sum is σ = 5758283520. Its totient is φ = 284663808.

The previous prime is 1369123531. The next prime is 1369123571. The reversal of 1369123560 is 653219631.

1369123560 is a `hidden beast` number, since 1 + 3 + 6 + 91 + 2 + 3 + 560 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an unprimeable number.

It is a polite number, since it can be written in 159 ways as a sum of consecutive naturals, for example, 20434647 + ... + 20434713.

It is an arithmetic number, because the mean of its divisors is an integer number (8997318).

Almost surely, 2^1369123560 is an apocalyptic number.

1369123560 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1369123560, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2879141760).

1369123560 is an abundant number, since it is smaller than the sum of its proper divisors (4389159960).

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

1369123560 is a wasteful number, since it uses less digits than its factorization.

1369123560 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 167 (or 154 counting only the distinct ones).

The product of its (nonzero) digits is 29160, while the sum is 36.

The square root of 1369123560 is about 37001.6696920558. The cubic root of 1369123560 is about 1110.4036515873.

The spelling of 1369123560 in words is "one billion, three hundred sixty-nine million, one hundred twenty-three thousand, five hundred sixty".