501312145156 has 9 divisors (see below), whose sum is σ = 877298732149. Its totient is φ = 250655364544.

The previous prime is 501312145153. The next prime is 501312145157. The reversal of 501312145156 is 651541213105.

The square root of 501312145156 is 708034.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in only one way, i.e., 226300004100 + 275012141056 = 475710^2 + 524416^2 .

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (501312145153) by changing a digit.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 1239060 + ... + 1593076.

Almost surely, 2^501312145156 is an apocalyptic number.

501312145156 is the 708034-th square number.

It is an amenable number.

501312145156 is a deficient number, since it is larger than the sum of its proper divisors (375986586993).

501312145156 is an frugal number, since it uses more digits than its factorization.

501312145156 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 708038 (or 354019 counting only the distinct ones).

The product of its (nonzero) digits is 18000, while the sum is 34.

The spelling of 501312145156 in words is "five hundred one billion, three hundred twelve million, one hundred forty-five thousand, one hundred fifty-six".