134633261253 has 4 divisors (see below), whose sum is σ = 179511015008. Its totient is φ = 89755507500.

The previous prime is 134633261201. The next prime is 134633261281. The reversal of 134633261253 is 352162336431.

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 de Polignac number, because none of the positive numbers 2^k-134633261253 is a prime.

It is a super-2 number, since 2×134633261253² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (134633361253) 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, 22438876873 + ... + 22438876878.

It is an arithmetic number, because the mean of its divisors is an integer number (44877753752).

Almost surely, 2^134633261253 is an apocalyptic number.

It is an amenable number.

134633261253 is a deficient number, since it is larger than the sum of its proper divisors (44877753755).

134633261253 is an equidigital number, since it uses as much as digits as its factorization.

134633261253 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 44877753754.

The product of its digits is 233280, while the sum is 39.

Adding to 134633261253 its reverse (352162336431), we get a palindrome (486795597684).

The spelling of 134633261253 in words is "one hundred thirty-four billion, six hundred thirty-three million, two hundred sixty-one thousand, two hundred fifty-three".