1002253705 has 16 divisors (see below), whose sum is σ = 1267634880. Its totient is φ = 758624832.

The previous prime is 1002253697. The next prime is 1002253711. The reversal of 1002253705 is 5073522001.

It is a cyclic number.

It is not a de Polignac number, because 1002253705 - 2³ = 1002253697 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1002253705.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 72187 + ... + 84943.

It is an arithmetic number, because the mean of its divisors is an integer number (79227180).

Almost surely, 2^1002253705 is an apocalyptic number.

It is an amenable number.

1002253705 is a deficient number, since it is larger than the sum of its proper divisors (265381175).

1002253705 is a wasteful number, since it uses less digits than its factorization.

1002253705 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13608.

The product of its (nonzero) digits is 2100, while the sum is 25.

The square root of 1002253705 is about 31658.3907519002. The cubic root of 1002253705 is about 1000.7506713515.

Adding to 1002253705 its reverse (5073522001), we get a palindrome (6075775706).

The spelling of 1002253705 in words is "one billion, two million, two hundred fifty-three thousand, seven hundred five".