1552136165 has 4 divisors (see below), whose sum is σ = 1862563404. Its totient is φ = 1241708928.

The previous prime is 1552136153. The next prime is 1552136171. The reversal of 1552136165 is 5616312551.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 5616312551 = 397 ⋅14146883.

It can be written as a sum of positive squares in 2 ways, for example, as 887682436 + 664453729 = 29794^2 + 25777^2 .

It is a cyclic number.

It is not a de Polignac number, because 1552136165 - 2¹⁸ = 1551874021 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 155213612 + ... + 155213621.

It is an arithmetic number, because the mean of its divisors is an integer number (465640851).

Almost surely, 2^1552136165 is an apocalyptic number.

It is an amenable number.

1552136165 is a deficient number, since it is larger than the sum of its proper divisors (310427239).

1552136165 is an equidigital number, since it uses as much as digits as its factorization.

1552136165 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 310427238.

The product of its digits is 27000, while the sum is 35.

The square root of 1552136165 is about 39397.1593519127. The cubic root of 1552136165 is about 1157.8259331211.

The spelling of 1552136165 in words is "one billion, five hundred fifty-two million, one hundred thirty-six thousand, one hundred sixty-five".