12155465 has 8 divisors (see below), whose sum is σ = 16670400. Its totient is φ = 8335152.

The previous prime is 12155461. The next prime is 12155467. The reversal of 12155465 is 56455121.

It is a happy number.

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

It is not a de Polignac number, because 12155465 - 2² = 12155461 is a prime.

It is not an unprimeable number, because it can be changed into a prime (12155461) 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, 173615 + ... + 173684.

It is an arithmetic number, because the mean of its divisors is an integer number (2083800).

Almost surely, 2^12155465 is an apocalyptic number.

It is an amenable number.

12155465 is a deficient number, since it is larger than the sum of its proper divisors (4514935).

12155465 is an equidigital number, since it uses as much as digits as its factorization.

12155465 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 347311.

The product of its digits is 6000, while the sum is 29.

The square root of 12155465 is about 3486.4688439738. The cubic root of 12155465 is about 229.9272927083.

The spelling of 12155465 in words is "twelve million, one hundred fifty-five thousand, four hundred sixty-five".