541631389 has 4 divisors (see below), whose sum is σ = 583295356. Its totient is φ = 499967424.

The previous prime is 541631369. The next prime is 541631449. The reversal of 541631389 is 983136145.

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 36505764 + 505125625 = 6042^2 + 22475^2 .

It is a cyclic number.

It is not a de Polignac number, because 541631389 - 2⁹ = 541630877 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 (541631359) 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, 20831964 + ... + 20831989.

It is an arithmetic number, because the mean of its divisors is an integer number (145823839).

Almost surely, 2^541631389 is an apocalyptic number.

It is an amenable number.

541631389 is a deficient number, since it is larger than the sum of its proper divisors (41663967).

541631389 is a wasteful number, since it uses less digits than its factorization.

541631389 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41663966.

The product of its digits is 77760, while the sum is 40.

The square root of 541631389 is about 23272.9755080866. The cubic root of 541631389 is about 815.1445107392.

The spelling of 541631389 in words is "five hundred forty-one million, six hundred thirty-one thousand, three hundred eighty-nine".