501215069 has 2 divisors, whose sum is σ = 501215070. Its totient is φ = 501215068.

The previous prime is 501215059. The next prime is 501215087. The reversal of 501215069 is 960512105.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 293711044 + 207504025 = 17138^2 + 14405^2 .

It is a cyclic number.

It is not a de Polignac number, because 501215069 - 2¹⁶ = 501149533 is a prime.

It is a super-3 number, since 3×501215069³ (a number of 27 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (501215059) 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 as a sum of consecutive naturals, namely, 250607534 + 250607535.

It is an arithmetic number, because the mean of its divisors is an integer number (250607535).

Almost surely, 2^501215069 is an apocalyptic number.

It is an amenable number.

501215069 is a deficient number, since it is larger than the sum of its proper divisors (1).

501215069 is an equidigital number, since it uses as much as digits as its factorization.

501215069 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2700, while the sum is 29.

The square root of 501215069 is about 22387.8330572657. The cubic root of 501215069 is about 794.3429398163.

The spelling of 501215069 in words is "five hundred one million, two hundred fifteen thousand, sixty-nine".