12601280 has 56 divisors (see below), whose sum is σ = 30614112. Its totient is φ = 4938752.

The previous prime is 12601273. The next prime is 12601289. The reversal of 12601280 is 8210621.

12601280 = T₁₀₅ + T₁₀₆ + ... + T₄₂₄.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12601289) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 16589 + ... + 17331.

Almost surely, 2^12601280 is an apocalyptic number.

12601280 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 12601280, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (15307056).

12601280 is an abundant number, since it is smaller than the sum of its proper divisors (18012832).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

12601280 is an equidigital number, since it uses as much as digits as its factorization.

12601280 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 813 (or 803 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 20.

The square root of 12601280 is about 3549.8281648553. The cubic root of 12601280 is about 232.7045565541.

The spelling of 12601280 in words is "twelve million, six hundred one thousand, two hundred eighty".