546012421 has 2 divisors, whose sum is σ = 546012422. Its totient is φ = 546012420.

The previous prime is 546012359. The next prime is 546012431. The reversal of 546012421 is 124210645.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 461648196 + 84364225 = 21486^2 + 9185^2 .

It is a cyclic number.

It is not a de Polignac number, because 546012421 - 2¹⁵ = 545979653 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (546012431) 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, 273006210 + 273006211.

It is an arithmetic number, because the mean of its divisors is an integer number (273006211).

Almost surely, 2^546012421 is an apocalyptic number.

It is an amenable number.

546012421 is a deficient number, since it is larger than the sum of its proper divisors (1).

546012421 is an equidigital number, since it uses as much as digits as its factorization.

546012421 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1920, while the sum is 25.

The square root of 546012421 is about 23366.9086744481. The cubic root of 546012421 is about 817.3364003472.

The spelling of 546012421 in words is "five hundred forty-six million, twelve thousand, four hundred twenty-one".