1361364165 has 160 divisors (see below), whose sum is σ = 3020903424. Its totient is φ = 572313600.

The previous prime is 1361364119. The next prime is 1361364167. The reversal of 1361364165 is 5614631631.

1361364165 is a `hidden beast` number, since 1 + 3 + 6 + 1 + 3 + 641 + 6 + 5 = 666.

It is not a de Polignac number, because 1361364165 - 2¹³ = 1361355973 is a prime.

It is a super-2 number, since 2×1361364165² = 3706624779492294450, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1361364167) by changing a digit.

It is a polite number, since it can be written in 159 ways as a sum of consecutive naturals, for example, 2264865 + ... + 2265465.

Almost surely, 2^1361364165 is an apocalyptic number.

1361364165 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1361364165 is an abundant number, since it is smaller than the sum of its proper divisors (1659539259).

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

1361364165 is a wasteful number, since it uses less digits than its factorization.

1361364165 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 689 (or 680 counting only the distinct ones).

The product of its digits is 38880, while the sum is 36.

The square root of 1361364165 is about 36896.6687520703. The cubic root of 1361364165 is about 1108.3019691252.

Adding to 1361364165 its reverse (5614631631), we get a palindrome (6975995796).

The spelling of 1361364165 in words is "one billion, three hundred sixty-one million, three hundred sixty-four thousand, one hundred sixty-five".