2134404081 has 16 divisors (see below), whose sum is σ = 3163056000. Its totient is φ = 1422496944.

The previous prime is 2134404073. The next prime is 2134404109. The reversal of 2134404081 is 1804044312.

2134404081 is a `hidden beast` number, since 213 + 4 + 40 + 408 + 1 = 666.

It is not a de Polignac number, because 2134404081 - 2³ = 2134404073 is a prime.

It is a super-2 number, since 2×2134404081² = 9111361561978909122, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (2134404581) 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, 93595 + ... + 114143.

It is an arithmetic number, because the mean of its divisors is an integer number (197691000).

Almost surely, 2^2134404081 is an apocalyptic number.

It is an amenable number.

2134404081 is a deficient number, since it is larger than the sum of its proper divisors (1028651919).

2134404081 is a wasteful number, since it uses less digits than its factorization.

2134404081 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24405 (or 24399 counting only the distinct ones).

The product of its (nonzero) digits is 3072, while the sum is 27.

The square root of 2134404081 is about 46199.6112645983. The cubic root of 2134404081 is about 1287.5345175149.

Adding to 2134404081 its reverse (1804044312), we get a palindrome (3938448393).

The spelling of 2134404081 in words is "two billion, one hundred thirty-four million, four hundred four thousand, eighty-one".