1365866052 has 12 divisors (see below), whose sum is σ = 3187020816. Its totient is φ = 455288680.

The previous prime is 1365866027. The next prime is 1365866057. The reversal of 1365866052 is 2506685631.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (12).

It is a junction number, because it is equal to n+sod(n) for n = 1365865995 and 1365866013.

It is not an unprimeable number, because it can be changed into a prime (1365866057) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 56911074 + ... + 56911097.

It is an arithmetic number, because the mean of its divisors is an integer number (265585068).

Almost surely, 2^1365866052 is an apocalyptic number.

1365866052 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1365866052 is an abundant number, since it is smaller than the sum of its proper divisors (1821154764).

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

1365866052 is a wasteful number, since it uses less digits than its factorization.

1365866052 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 113822178 (or 113822176 counting only the distinct ones).

The product of its (nonzero) digits is 259200, while the sum is 42.

The square root of 1365866052 is about 36957.6250860360. The cubic root of 1365866052 is about 1109.5223039863.

The spelling of 1365866052 in words is "one billion, three hundred sixty-five million, eight hundred sixty-six thousand, fifty-two".