12151151 has 4 divisors (see below), whose sum is σ = 12380472. Its totient is φ = 11921832.

The previous prime is 12151147. The next prime is 12151169. The reversal of 12151151 is 15115121.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 15115121 = 7 ⋅2159303.

It is a cyclic number.

It is not a de Polignac number, because 12151151 - 2² = 12151147 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12151351) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 114581 + ... + 114686.

It is an arithmetic number, because the mean of its divisors is an integer number (3095118).

Almost surely, 2^12151151 is an apocalyptic number.

12151151 is a deficient number, since it is larger than the sum of its proper divisors (229321).

12151151 is an equidigital number, since it uses as much as digits as its factorization.

12151151 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 229320.

The product of its digits is 50, while the sum is 17.

The square root of 12151151 is about 3485.8501115223. The cubic root of 12151151 is about 229.9000889305.

Adding to 12151151 its reverse (15115121), we get a palindrome (27266272).

The spelling of 12151151 in words is "twelve million, one hundred fifty-one thousand, one hundred fifty-one".