12511351 has 4 divisors (see below), whose sum is σ = 12640432. Its totient is φ = 12382272.

The previous prime is 12511349. The next prime is 12511357. The reversal of 12511351 is 15311521.

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

It is a cyclic number.

It is not a de Polignac number, because 12511351 - 2¹ = 12511349 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 (12511357) 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, 64395 + ... + 64588.

It is an arithmetic number, because the mean of its divisors is an integer number (3160108).

Almost surely, 2^12511351 is an apocalyptic number.

12511351 is a deficient number, since it is larger than the sum of its proper divisors (129081).

12511351 is an equidigital number, since it uses as much as digits as its factorization.

12511351 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 129080.

The product of its digits is 150, while the sum is 19.

The square root of 12511351 is about 3537.1388154835. The cubic root of 12511351 is about 232.1496693273.

Adding to 12511351 its reverse (15311521), we get a palindrome (27822872).

It can be divided in two parts, 125 and 11351, that added together give a triangular number (11476 = T₁₅₁).

The spelling of 12511351 in words is "twelve million, five hundred eleven thousand, three hundred fifty-one".