2145306541 has 8 divisors (see below), whose sum is σ = 2482814720. Its totient is φ = 1815557328.

The previous prime is 2145306533. The next prime is 2145306563. The reversal of 2145306541 is 1456035412.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 2145306541 - 2³ = 2145306533 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 (2145306341) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1939146 + ... + 1940251.

It is an arithmetic number, because the mean of its divisors is an integer number (310351840).

Almost surely, 2^2145306541 is an apocalyptic number.

It is an amenable number.

2145306541 is a deficient number, since it is larger than the sum of its proper divisors (337508179).

2145306541 is an equidigital number, since it uses as much as digits as its factorization.

2145306541 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3879483.

The product of its (nonzero) digits is 14400, while the sum is 31.

The square root of 2145306541 is about 46317.4539563651. The cubic root of 2145306541 is about 1289.7230222799.

The spelling of 2145306541 in words is "two billion, one hundred forty-five million, three hundred six thousand, five hundred forty-one".