12515461 has 4 divisors (see below), whose sum is σ = 14303392. Its totient is φ = 10727532.

The previous prime is 12515453. The next prime is 12515467. The reversal of 12515461 is 16451521.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 16451521 = 607 ⋅27103.

It is a cyclic number.

It is not a de Polignac number, because 12515461 - 2³ = 12515453 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 (12515467) 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, 893955 + ... + 893968.

It is an arithmetic number, because the mean of its divisors is an integer number (3575848).

Almost surely, 2^12515461 is an apocalyptic number.

It is an amenable number.

12515461 is a deficient number, since it is larger than the sum of its proper divisors (1787931).

12515461 is an equidigital number, since it uses as much as digits as its factorization.

12515461 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1787930.

The product of its digits is 1200, while the sum is 25.

The square root of 12515461 is about 3537.7197458250. The cubic root of 12515461 is about 232.1750870641.

Adding to 12515461 its reverse (16451521), we get a palindrome (28966982).

The spelling of 12515461 in words is "twelve million, five hundred fifteen thousand, four hundred sixty-one".