12151545 has 32 divisors (see below), whose sum is σ = 23393280. Its totient is φ = 5261760.

The previous prime is 12151523. The next prime is 12151553. The reversal of 12151545 is 54515121.

12151545 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 12151545 - 2⁷ = 12151417 is a prime.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1051 + ... + 5040.

It is an arithmetic number, because the mean of its divisors is an integer number (731040).

Almost surely, 2^12151545 is an apocalyptic number.

12151545 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

12151545 is a deficient number, since it is larger than the sum of its proper divisors (11241735).

12151545 is a wasteful number, since it uses less digits than its factorization.

12151545 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6125.

The product of its digits is 1000, while the sum is 24.

The square root of 12151545 is about 3485.9066252555. The cubic root of 12151545 is about 229.9025737336.

Adding to 12151545 its reverse (54515121), we get a palindrome (66666666).

The spelling of 12151545 in words is "twelve million, one hundred fifty-one thousand, five hundred forty-five".