1002142665 has 32 divisors (see below), whose sum is σ = 1785546240. Its totient is φ = 533288448.

The previous prime is 1002142627. The next prime is 1002142679. The reversal of 1002142665 is 5662412001.

It is not a de Polignac number, because 1002142665 - 2⁸ = 1002142409 is a prime.

It is a super-3 number, since 3×1002142665³ (a number of 28 digits) contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 54489 + ... + 70521.

It is an arithmetic number, because the mean of its divisors is an integer number (55798320).

Almost surely, 2^1002142665 is an apocalyptic number.

1002142665 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1002142665 is a deficient number, since it is larger than the sum of its proper divisors (783403575).

1002142665 is a wasteful number, since it uses less digits than its factorization.

1002142665 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16510 (or 16504 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 27.

The square root of 1002142665 is about 31656.6369818400. The cubic root of 1002142665 is about 1000.7137121604.

Adding to 1002142665 its reverse (5662412001), we get a palindrome (6664554666).

The spelling of 1002142665 in words is "one billion, two million, one hundred forty-two thousand, six hundred sixty-five".