541267021 has 4 divisors (see below), whose sum is σ = 542630812. Its totient is φ = 539903232.

The previous prime is 541267019. The next prime is 541267033. The reversal of 541267021 is 120762145.

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 212751396 + 328515625 = 14586^2 + 18125^2 .

It is a cyclic number.

It is not a de Polignac number, because 541267021 - 2¹ = 541267019 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 (541267721) 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, 681300 + ... + 682093.

It is an arithmetic number, because the mean of its divisors is an integer number (135657703).

Almost surely, 2^541267021 is an apocalyptic number.

It is an amenable number.

541267021 is a deficient number, since it is larger than the sum of its proper divisors (1363791).

541267021 is a wasteful number, since it uses less digits than its factorization.

541267021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1363790.

The product of its (nonzero) digits is 3360, while the sum is 28.

The square root of 541267021 is about 23265.1460558493. The cubic root of 541267021 is about 814.9616808611.

The spelling of 541267021 in words is "five hundred forty-one million, two hundred sixty-seven thousand, twenty-one".