1301172253 has 4 divisors (see below), whose sum is σ = 1323226080. Its totient is φ = 1279118428.

The previous prime is 1301172247. The next prime is 1301172281. The reversal of 1301172253 is 3522711031.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1301172253 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 (1301172283) 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, 11026825 + ... + 11026942.

It is an arithmetic number, because the mean of its divisors is an integer number (330806520).

Almost surely, 2^1301172253 is an apocalyptic number.

It is an amenable number.

1301172253 is a deficient number, since it is larger than the sum of its proper divisors (22053827).

1301172253 is an equidigital number, since it uses as much as digits as its factorization.

1301172253 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22053826.

The product of its (nonzero) digits is 1260, while the sum is 25.

The square root of 1301172253 is about 36071.7653158256. The cubic root of 1301172253 is about 1091.7208328606.

Adding to 1301172253 its reverse (3522711031), we get a palindrome (4823883284).

It can be divided in two parts, 13011 and 72253, that added together give a square (85264 = 292²).

The spelling of 1301172253 in words is "one billion, three hundred one million, one hundred seventy-two thousand, two hundred fifty-three".