541451621 has 2 divisors, whose sum is σ = 541451622. Its totient is φ = 541451620.

The previous prime is 541451597. The next prime is 541451627. The reversal of 541451621 is 126154145.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 538936225 + 2515396 = 23215^2 + 1586^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-541451621 is a prime.

It is a Chen prime.

It is equal to p_28420553 and since 541451621 and 28420553 have the same sum of digits, it is a Honaker prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (541451627) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 270725810 + 270725811.

It is an arithmetic number, because the mean of its divisors is an integer number (270725811).

Almost surely, 2^541451621 is an apocalyptic number.

It is an amenable number.

541451621 is a deficient number, since it is larger than the sum of its proper divisors (1).

541451621 is an equidigital number, since it uses as much as digits as its factorization.

541451621 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 4800, while the sum is 29.

The square root of 541451621 is about 23269.1130256398. The cubic root of 541451621 is about 815.0543183339.

The spelling of 541451621 in words is "five hundred forty-one million, four hundred fifty-one thousand, six hundred twenty-one".