30702256045 has 4 divisors (see below), whose sum is σ = 36842707260. Its totient is φ = 24561804832.

The previous prime is 30702256019. The next prime is 30702256069. The reversal of 30702256045 is 54065220703.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 54065220703 = 13 ⋅4158863131.

It can be written as a sum of positive squares in 2 ways, for example, as 23833493161 + 6868762884 = 154381^2 + 82878^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-30702256045 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 30702256045.

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, 3070225600 + ... + 3070225609.

It is an arithmetic number, because the mean of its divisors is an integer number (9210676815).

Almost surely, 2^30702256045 is an apocalyptic number.

It is an amenable number.

30702256045 is a deficient number, since it is larger than the sum of its proper divisors (6140451215).

30702256045 is an equidigital number, since it uses as much as digits as its factorization.

30702256045 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6140451214.

The product of its (nonzero) digits is 50400, while the sum is 34.

Adding to 30702256045 its reverse (54065220703), we get a palindrome (84767476748).

The spelling of 30702256045 in words is "thirty billion, seven hundred two million, two hundred fifty-six thousand, forty-five".