2135399997 has 16 divisors (see below), whose sum is σ = 2857982400. Its totient is φ = 1418220672.

The previous prime is 2135399993. The next prime is 2135400019. The reversal of 2135399997 is 7999935312.

It is not a de Polignac number, because 2135399997 - 2² = 2135399993 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2135399993) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1468923 + ... + 1470375.

It is an arithmetic number, because the mean of its divisors is an integer number (178623900).

Almost surely, 2^2135399997 is an apocalyptic number.

It is an amenable number.

2135399997 is a deficient number, since it is larger than the sum of its proper divisors (722582403).

2135399997 is a wasteful number, since it uses less digits than its factorization.

2135399997 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2972.

The product of its digits is 4133430, while the sum is 57.

The square root of 2135399997 is about 46210.3884099669. The cubic root of 2135399997 is about 1287.7347415263.

The spelling of 2135399997 in words is "two billion, one hundred thirty-five million, three hundred ninety-nine thousand, nine hundred ninety-seven".