2145541301 has 4 divisors (see below), whose sum is σ = 2154444204. Its totient is φ = 2136638400.

The previous prime is 2145541291. The next prime is 2145541309. The reversal of 2145541301 is 1031455412.

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 872907025 + 1272634276 = 29545^2 + 35674^2 .

It is a cyclic number.

It is not a de Polignac number, because 2145541301 - 2²² = 2141346997 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 (2145541309) 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, 4451090 + ... + 4451571.

It is an arithmetic number, because the mean of its divisors is an integer number (538611051).

Almost surely, 2^2145541301 is an apocalyptic number.

It is an amenable number.

2145541301 is a deficient number, since it is larger than the sum of its proper divisors (8902903).

2145541301 is an equidigital number, since it uses as much as digits as its factorization.

2145541301 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8902902.

The product of its (nonzero) digits is 2400, while the sum is 26.

The square root of 2145541301 is about 46319.9881368724. The cubic root of 2145541301 is about 1289.7700651814.

Adding to 2145541301 its reverse (1031455412), we get a palindrome (3176996713).

The spelling of 2145541301 in words is "two billion, one hundred forty-five million, five hundred forty-one thousand, three hundred one".