12787151 has 16 divisors (see below), whose sum is σ = 14291424. Its totient is φ = 11366784.

The previous prime is 12787147. The next prime is 12787153. The reversal of 12787151 is 15178721.

It is not a de Polignac number, because 12787151 - 2² = 12787147 is a prime.

It is a super-2 number, since 2×12787151² = 327022461393602, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12787153) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 46025 + ... + 46301.

It is an arithmetic number, because the mean of its divisors is an integer number (893214).

Almost surely, 2^12787151 is an apocalyptic number.

12787151 is a deficient number, since it is larger than the sum of its proper divisors (1504273).

12787151 is a wasteful number, since it uses less digits than its factorization.

12787151 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 410.

The product of its digits is 3920, while the sum is 32.

The square root of 12787151 is about 3575.9126107890. The cubic root of 12787151 is about 233.8431205519.

It can be divided in two parts, 127 and 87151, that added together give a palindrome (87278).

The spelling of 12787151 in words is "twelve million, seven hundred eighty-seven thousand, one hundred fifty-one".