12601887 has 4 divisors (see below), whose sum is σ = 16802520. Its totient is φ = 8401256.

The previous prime is 12601847. The next prime is 12601891. The reversal of 12601887 is 78810621.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 78810621 = 3 ⋅26270207.

It is a cyclic number.

It is not a de Polignac number, because 12601887 - 2⁷ = 12601759 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12601847) 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, 2100312 + ... + 2100317.

It is an arithmetic number, because the mean of its divisors is an integer number (4200630).

Almost surely, 2^12601887 is an apocalyptic number.

12601887 is a deficient number, since it is larger than the sum of its proper divisors (4200633).

12601887 is an equidigital number, since it uses as much as digits as its factorization.

12601887 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4200632.

The product of its (nonzero) digits is 5376, while the sum is 33.

The square root of 12601887 is about 3549.9136609219. The cubic root of 12601887 is about 232.7082929311.

The spelling of 12601887 in words is "twelve million, six hundred one thousand, eight hundred eighty-seven".