12655031 has 4 divisors (see below), whose sum is σ = 12679752. Its totient is φ = 12630312.

The previous prime is 12655003. The next prime is 12655033. The reversal of 12655031 is 13055621.

12655031 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 13055621 = 419 ⋅31159.

It is a cyclic number.

It is not a de Polignac number, because 12655031 - 2¹⁰ = 12654007 is a prime.

It is a super-2 number, since 2×12655031² = 320299619221922, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 12654988 and 12655006.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12655033) 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, 11576 + ... + 12621.

It is an arithmetic number, because the mean of its divisors is an integer number (3169938).

Almost surely, 2^12655031 is an apocalyptic number.

12655031 is a deficient number, since it is larger than the sum of its proper divisors (24721).

12655031 is an equidigital number, since it uses as much as digits as its factorization.

12655031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24720.

The product of its (nonzero) digits is 900, while the sum is 23.

The square root of 12655031 is about 3557.3910383875. The cubic root of 12655031 is about 233.0349557973.

The spelling of 12655031 in words is "twelve million, six hundred fifty-five thousand, thirty-one".