12151371 has 4 divisors (see below), whose sum is σ = 16201832. Its totient is φ = 8100912.

The previous prime is 12151351. The next prime is 12151409. The reversal of 12151371 is 17315121.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 17315121 = 3 ⋅5771707.

It is not a de Polignac number, because 12151371 - 2¹¹ = 12149323 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12151351) 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 3 ways as a sum of consecutive naturals, for example, 2025226 + ... + 2025231.

It is an arithmetic number, because the mean of its divisors is an integer number (4050458).

Almost surely, 2^12151371 is an apocalyptic number.

12151371 is a deficient number, since it is larger than the sum of its proper divisors (4050461).

12151371 is an equidigital number, since it uses as much as digits as its factorization.

12151371 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4050460.

The product of its digits is 210, while the sum is 21.

The square root of 12151371 is about 3485.8816675269. The cubic root of 12151371 is about 229.9014763906.

Adding to 12151371 its reverse (17315121), we get a palindrome (29466492).

The spelling of 12151371 in words is "twelve million, one hundred fifty-one thousand, three hundred seventy-one".