1002542165 has 4 divisors (see below), whose sum is σ = 1203050604. Its totient is φ = 802033728.

The previous prime is 1002542141. The next prime is 1002542221. The reversal of 1002542165 is 5612452001.

1002542165 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 5612452001 = 13 ⋅431727077.

It can be written as a sum of positive squares in 2 ways, for example, as 208542481 + 793999684 = 14441^2 + 28178^2 .

It is a cyclic number.

It is not a de Polignac number, because 1002542165 - 2¹⁴ = 1002525781 is a prime.

It is a Duffinian 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, 100254212 + ... + 100254221.

It is an arithmetic number, because the mean of its divisors is an integer number (300762651).

Almost surely, 2^1002542165 is an apocalyptic number.

It is an amenable number.

1002542165 is a deficient number, since it is larger than the sum of its proper divisors (200508439).

1002542165 is an equidigital number, since it uses as much as digits as its factorization.

1002542165 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 200508438.

The product of its (nonzero) digits is 2400, while the sum is 26.

The square root of 1002542165 is about 31662.9462463619. The cubic root of 1002542165 is about 1000.8466712788.

Adding to 1002542165 its reverse (5612452001), we get a palindrome (6614994166).

The spelling of 1002542165 in words is "one billion, two million, five hundred forty-two thousand, one hundred sixty-five".