2081634153 has 4 divisors (see below), whose sum is σ = 2775512208. Its totient is φ = 1387756100.

The previous prime is 2081634131. The next prime is 2081634157. The reversal of 2081634153 is 3514361802.

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 2081634153 - 2¹⁸ = 2081372009 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2081634157) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 346939023 + ... + 346939028.

It is an arithmetic number, because the mean of its divisors is an integer number (693878052).

Almost surely, 2^2081634153 is an apocalyptic number.

It is an amenable number.

2081634153 is a deficient number, since it is larger than the sum of its proper divisors (693878055).

2081634153 is an equidigital number, since it uses as much as digits as its factorization.

2081634153 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 693878054.

The product of its (nonzero) digits is 17280, while the sum is 33.

The square root of 2081634153 is about 45624.9290739175. The cubic root of 2081634153 is about 1276.8350667687.

Adding to 2081634153 its reverse (3514361802), we get a palindrome (5595995955).

It can be divided in two parts, 208 and 1634153, that added together give a palindrome (1634361).

The spelling of 2081634153 in words is "two billion, eighty-one million, six hundred thirty-four thousand, one hundred fifty-three".