2135192892 has 144 divisors (see below), whose sum is σ = 5994014208. Its totient is φ = 579070080.

The previous prime is 2135192881. The next prime is 2135192893. The reversal of 2135192892 is 2982915312.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2135192893) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 6865417 + ... + 6865727.

Almost surely, 2^2135192892 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2135192892, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2997007104).

2135192892 is an abundant number, since it is smaller than the sum of its proper divisors (3858821316).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2135192892 is a wasteful number, since it uses less digits than its factorization.

2135192892 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 456 (or 407 counting only the distinct ones).

The product of its digits is 77760, while the sum is 42.

The square root of 2135192892 is about 46208.1474634074. The cubic root of 2135192892 is about 1287.6931092128.

The spelling of 2135192892 in words is "two billion, one hundred thirty-five million, one hundred ninety-two thousand, eight hundred ninety-two".