1301225213 has 4 divisors (see below), whose sum is σ = 1336393500. Its totient is φ = 1266056928.

The previous prime is 1301225201. The next prime is 1301225231. The reversal of 1301225213 is 3125221031.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 749773924 + 551451289 = 27382^2 + 23483^2 .

It is a cyclic number.

It is not a de Polignac number, because 1301225213 - 2⁸ = 1301224957 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 (1301225813) 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, 17584088 + ... + 17584161.

It is an arithmetic number, because the mean of its divisors is an integer number (334098375).

Almost surely, 2^1301225213 is an apocalyptic number.

It is an amenable number.

1301225213 is a deficient number, since it is larger than the sum of its proper divisors (35168287).

1301225213 is an equidigital number, since it uses as much as digits as its factorization.

1301225213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35168286.

The product of its (nonzero) digits is 360, while the sum is 20.

The square root of 1301225213 is about 36072.4994005129. The cubic root of 1301225213 is about 1091.7356443126.

Adding to 1301225213 its reverse (3125221031), we get a palindrome (4426446244).

The spelling of 1301225213 in words is "one billion, three hundred one million, two hundred twenty-five thousand, two hundred thirteen".