11551254135 has 16 divisors (see below), whose sum is σ = 18488237280. Its totient is φ = 6158592000.

The previous prime is 11551254133. The next prime is 11551254173. The reversal of 11551254135 is 53145215511.

It is a happy number.

It is not a de Polignac number, because 11551254135 - 2¹ = 11551254133 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 11551254096 and 11551254105.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11551254133) 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, 83290 + ... + 173319.

It is an arithmetic number, because the mean of its divisors is an integer number (1155514830).

Almost surely, 2^11551254135 is an apocalyptic number.

11551254135 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

11551254135 is a deficient number, since it is larger than the sum of its proper divisors (6936983145).

11551254135 is a wasteful number, since it uses less digits than its factorization.

11551254135 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 259618.

The product of its digits is 15000, while the sum is 33.

Adding to 11551254135 its reverse (53145215511), we get a palindrome (64696469646).

The spelling of 11551254135 in words is "eleven billion, five hundred fifty-one million, two hundred fifty-four thousand, one hundred thirty-five".