12151451 has 8 divisors (see below), whose sum is σ = 13117104. Its totient is φ = 11190240.

The previous prime is 12151417. The next prime is 12151453. The reversal of 12151451 is 15415121.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12151451 is a prime.

It is a super-2 number, since 2×12151451² = 295315522810802, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (12151453) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6605 + ... + 8241.

It is an arithmetic number, because the mean of its divisors is an integer number (1639638).

Almost surely, 2^12151451 is an apocalyptic number.

12151451 is a deficient number, since it is larger than the sum of its proper divisors (965653).

12151451 is a wasteful number, since it uses less digits than its factorization.

12151451 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2221.

The product of its digits is 200, while the sum is 20.

The square root of 12151451 is about 3485.8931423668. The cubic root of 12151451 is about 229.9019809175.

Adding to 12151451 its reverse (15415121), we get a palindrome (27566572).

The spelling of 12151451 in words is "twelve million, one hundred fifty-one thousand, four hundred fifty-one".