2135288997 has 12 divisors (see below), whose sum is σ = 3084812640. Its totient is φ = 1423292328.

The previous prime is 2135288993. The next prime is 2135289017. The reversal of 2135288997 is 7998825312.

2135288997 is a `hidden beast` number, since 21 + 3 + 528 + 8 + 9 + 97 = 666.

It is not a de Polignac number, because 2135288997 - 2² = 2135288993 is a prime.

It is a Smith number, since the sum of its digits (54) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2135288993) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 52338 + ... + 83724.

It is an arithmetic number, because the mean of its divisors is an integer number (257067720).

Almost surely, 2^2135288997 is an apocalyptic number.

It is an amenable number.

2135288997 is a deficient number, since it is larger than the sum of its proper divisors (949523643).

2135288997 is a wasteful number, since it uses less digits than its factorization.

2135288997 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38952 (or 38949 counting only the distinct ones).

The product of its digits is 2177280, while the sum is 54.

The square root of 2135288997 is about 46209.1873657177. The cubic root of 2135288997 is about 1287.7124286055.

The spelling of 2135288997 in words is "two billion, one hundred thirty-five million, two hundred eighty-eight thousand, nine hundred ninety-seven".