2157270301 has 12 divisors (see below), whose sum is σ = 2313561852. Its totient is φ = 2004572544.

The previous prime is 2157270293. The next prime is 2157270329. The reversal of 2157270301 is 1030727512.

It can be written as a sum of positive squares in 2 ways, for example, as 1922384025 + 234886276 = 43845^2 + 15326^2 .

It is not a de Polignac number, because 2157270301 - 2³ = 2157270293 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 2157270301.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2157270331) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 95931 + ... + 116263.

It is an arithmetic number, because the mean of its divisors is an integer number (192796821).

Almost surely, 2^2157270301 is an apocalyptic number.

It is an amenable number.

2157270301 is a deficient number, since it is larger than the sum of its proper divisors (156291551).

2157270301 is an equidigital number, since it uses as much as digits as its factorization.

2157270301 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20508 (or 20429 counting only the distinct ones).

The product of its (nonzero) digits is 2940, while the sum is 28.

The square root of 2157270301 is about 46446.4239850605. The cubic root of 2157270301 is about 1292.1160513050.

Adding to 2157270301 its reverse (1030727512), we get a palindrome (3187997813).

The spelling of 2157270301 in words is "two billion, one hundred fifty-seven million, two hundred seventy thousand, three hundred one".