12261532254 has 16 divisors (see below), whose sum is σ = 25589284992. Its totient is φ = 3909474008.

The previous prime is 12261532193. The next prime is 12261532267. The reversal of 12261532254 is 45223516221.

It is a happy number.

12261532254 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 44425704 + ... + 44425979.

It is an arithmetic number, because the mean of its divisors is an integer number (1599330312).

Almost surely, 2^12261532254 is an apocalyptic number.

12261532254 is an abundant number, since it is smaller than the sum of its proper divisors (13327752738).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

12261532254 is a wasteful number, since it uses less digits than its factorization.

12261532254 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 88851711.

The product of its digits is 28800, while the sum is 33.

The spelling of 12261532254 in words is "twelve billion, two hundred sixty-one million, five hundred thirty-two thousand, two hundred fifty-four".