2081172134 has 8 divisors (see below), whose sum is σ = 3122867088. Its totient is φ = 1040216440.

The previous prime is 2081172131. The next prime is 2081172161. The reversal of 2081172134 is 4312711802.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×2081172134² = 8662554902676227912, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 2081172097 and 2081172106.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2081172131) 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, 177722 + ... + 189069.

It is an arithmetic number, because the mean of its divisors is an integer number (390358386).

Almost surely, 2^2081172134 is an apocalyptic number.

2081172134 is a deficient number, since it is larger than the sum of its proper divisors (1041694954).

2081172134 is a wasteful number, since it uses less digits than its factorization.

2081172134 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 369630.

The product of its (nonzero) digits is 2688, while the sum is 29.

The square root of 2081172134 is about 45619.8655631513. The cubic root of 2081172134 is about 1276.7405952034.

Adding to 2081172134 its reverse (4312711802), we get a palindrome (6393883936).

The spelling of 2081172134 in words is "two billion, eighty-one million, one hundred seventy-two thousand, one hundred thirty-four".