2155030301 has 4 divisors (see below), whose sum is σ = 2155684092. Its totient is φ = 2154376512.

The previous prime is 2155030249. The next prime is 2155030309. The reversal of 2155030301 is 1030305512.

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 2089404100 + 65626201 = 45710^2 + 8101^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2155030301 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 (2155030309) 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, 321926 + ... + 328551.

It is an arithmetic number, because the mean of its divisors is an integer number (538921023).

Almost surely, 2^2155030301 is an apocalyptic number.

It is an amenable number.

2155030301 is a deficient number, since it is larger than the sum of its proper divisors (653791).

2155030301 is an equidigital number, since it uses as much as digits as its factorization.

2155030301 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 653790.

The product of its (nonzero) digits is 450, while the sum is 20.

The square root of 2155030301 is about 46422.3039174059. The cubic root of 2155030301 is about 1291.6686738468.

Adding to 2155030301 its reverse (1030305512), we get a palindrome (3185335813).

The spelling of 2155030301 in words is "two billion, one hundred fifty-five million, thirty thousand, three hundred one".