2135113457 has 2 divisors, whose sum is σ = 2135113458. Its totient is φ = 2135113456.

The previous prime is 2135113423. The next prime is 2135113489. The reversal of 2135113457 is 7543115312.

It is an a-pointer prime, because the next prime (2135113489) can be obtained adding 2135113457 to its sum of digits (32).

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1859420641 + 275692816 = 43121^2 + 16604^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2135113457 is a prime.

It is not a weakly prime, because it can be changed into another prime (2135112457) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1067556728 + 1067556729.

It is an arithmetic number, because the mean of its divisors is an integer number (1067556729).

Almost surely, 2^2135113457 is an apocalyptic number.

It is an amenable number.

2135113457 is a deficient number, since it is larger than the sum of its proper divisors (1).

2135113457 is an equidigital number, since it uses as much as digits as its factorization.

2135113457 is an evil number, because the sum of its binary digits is even.

The product of its digits is 12600, while the sum is 32.

The square root of 2135113457 is about 46207.2879208464. The cubic root of 2135113457 is about 1287.6771404494.

Adding to 2135113457 its reverse (7543115312), we get a palindrome (9678228769).

The spelling of 2135113457 in words is "two billion, one hundred thirty-five million, one hundred thirteen thousand, four hundred fifty-seven".