2135157953 has 4 divisors (see below), whose sum is σ = 2204034048. Its totient is φ = 2066281860.

The previous prime is 2135157881. The next prime is 2135157961. The reversal of 2135157953 is 3597515312.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 2135157953 - 2²⁰ = 2134109377 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 2135157953.

It is not an unprimeable number, because it can be changed into a prime (2135157553) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 34438001 + ... + 34438062.

It is an arithmetic number, because the mean of its divisors is an integer number (551008512).

Almost surely, 2^2135157953 is an apocalyptic number.

It is an amenable number.

2135157953 is a deficient number, since it is larger than the sum of its proper divisors (68876095).

2135157953 is an equidigital number, since it uses as much as digits as its factorization.

2135157953 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 68876094.

The product of its digits is 141750, while the sum is 41.

The square root of 2135157953 is about 46207.7694008270. The cubic root of 2135157953 is about 1287.6860854985.

The spelling of 2135157953 in words is "two billion, one hundred thirty-five million, one hundred fifty-seven thousand, nine hundred fifty-three".