12151357 has 4 divisors (see below), whose sum is σ = 12175740. Its totient is φ = 12126976.

The previous prime is 12151351. The next prime is 12151409. The reversal of 12151357 is 75315121.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 5541316 + 6610041 = 2354^2 + 2571^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12151357 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, 11428 + ... + 12445.

It is an arithmetic number, because the mean of its divisors is an integer number (3043935).

Almost surely, 2^12151357 is an apocalyptic number.

It is an amenable number.

12151357 is a deficient number, since it is larger than the sum of its proper divisors (24383).

12151357 is an equidigital number, since it uses as much as digits as its factorization.

12151357 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24382.

The product of its digits is 1050, while the sum is 25.

The square root of 12151357 is about 3485.8796594260. The cubic root of 12151357 is about 229.9013880982.

Adding to 12151357 its reverse (75315121), we get a palindrome (87466478).

The spelling of 12151357 in words is "twelve million, one hundred fifty-one thousand, three hundred fifty-seven".