12155473 has 8 divisors (see below), whose sum is σ = 13286016. Its totient is φ = 11029200.

The previous prime is 12155467. The next prime is 12155501. The reversal of 12155473 is 37455121.

It is a happy number.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12155473 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12155173) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9415 + ... + 10627.

It is an arithmetic number, because the mean of its divisors is an integer number (1660752).

Almost surely, 2^12155473 is an apocalyptic number.

It is an amenable number.

12155473 is a deficient number, since it is larger than the sum of its proper divisors (1130543).

12155473 is a wasteful number, since it uses less digits than its factorization.

12155473 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2135.

The product of its digits is 4200, while the sum is 28.

The square root of 12155473 is about 3486.4699912662. The cubic root of 12155473 is about 229.9273431497.

The spelling of 12155473 in words is "twelve million, one hundred fifty-five thousand, four hundred seventy-three".