2135647530997 has 2 divisors, whose sum is σ = 2135647530998. Its totient is φ = 2135647530996.

The previous prime is 2135647530941. The next prime is 2135647531051. The reversal of 2135647530997 is 7990357465312.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1960198805041 + 175448725956 = 1400071^2 + 418866^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2135647530997 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2135647530937) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1067823765498 + 1067823765499.

It is an arithmetic number, because the mean of its divisors is an integer number (1067823765499).

Almost surely, 2^{2135647530997} is an apocalyptic number.

It is an amenable number.

2135647530997 is a deficient number, since it is larger than the sum of its proper divisors (1).

2135647530997 is an equidigital number, since it uses as much as digits as its factorization.

2135647530997 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 42865200, while the sum is 61.

The spelling of 2135647530997 in words is "two trillion, one hundred thirty-five billion, six hundred forty-seven million, five hundred thirty thousand, nine hundred ninety-seven".