1301225256 has 64 divisors (see below), whose sum is σ = 3636259200. Its totient is φ = 431132544.

The previous prime is 1301225231. The next prime is 1301225257. The reversal of 1301225256 is 6525221031.

It is a happy number.

1301225256 is a `hidden beast` number, since 13 + 0 + 122 + 525 + 6 = 666.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (1301225257) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 18036 + ... + 54108.

It is an arithmetic number, because the mean of its divisors is an integer number (56816550).

Almost surely, 2^1301225256 is an apocalyptic number.

It is a pronic number, being equal to 36072×36073.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1301225256, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1818129600).

1301225256 is an abundant number, since it is smaller than the sum of its proper divisors (2335033944).

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

1301225256 is a wasteful number, since it uses less digits than its factorization.

1301225256 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36255 (or 36245 counting only the distinct ones).

The product of its (nonzero) digits is 3600, while the sum is 27.

The square root of 1301225256 is about 36072.4999965348. The cubic root of 1301225256 is about 1091.7356563383.

Adding to 1301225256 its reverse (6525221031), we get a palindrome (7826446287).

The spelling of 1301225256 in words is "one billion, three hundred one million, two hundred twenty-five thousand, two hundred fifty-six".