2080145381 has 4 divisors (see below), whose sum is σ = 2202506892. Its totient is φ = 1957783872.

The previous prime is 2080145363. The next prime is 2080145401. The reversal of 2080145381 is 1835410802.

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 1776201025 + 303944356 = 42145^2 + 17434^2 .

It is a cyclic number.

It is not a de Polignac number, because 2080145381 - 2¹⁴ = 2080128997 is a prime.

It is a super-2 number, since 2×2080145381² = 8654009612191270322, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2080145351) 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, 61180730 + ... + 61180763.

It is an arithmetic number, because the mean of its divisors is an integer number (550626723).

Almost surely, 2^2080145381 is an apocalyptic number.

It is an amenable number.

2080145381 is a deficient number, since it is larger than the sum of its proper divisors (122361511).

2080145381 is a wasteful number, since it uses less digits than its factorization.

2080145381 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 122361510.

The product of its (nonzero) digits is 7680, while the sum is 32.

The square root of 2080145381 is about 45608.6108207650. The cubic root of 2080145381 is about 1276.5305992989.

The spelling of 2080145381 in words is "two billion, eighty million, one hundred forty-five thousand, three hundred eighty-one".