1020716501 has 6 divisors (see below), whose sum is σ = 1187364150. Its totient is φ = 874899816.

The previous prime is 1020716467. The next prime is 1020716527. The reversal of 1020716501 is 1056170201.

It can be written as a sum of positive squares in only one way, i.e., 703840900 + 316875601 = 26530^2 + 17801^2 .

It is not a de Polignac number, because 1020716501 - 2²² = 1016522197 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1020716561) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 10415426 + ... + 10415523.

It is an arithmetic number, because the mean of its divisors is an integer number (197894025).

Almost surely, 2^1020716501 is an apocalyptic number.

It is an amenable number.

1020716501 is a deficient number, since it is larger than the sum of its proper divisors (166647649).

1020716501 is an equidigital number, since it uses as much as digits as its factorization.

1020716501 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20830963 (or 20830956 counting only the distinct ones).

The product of its (nonzero) digits is 420, while the sum is 23.

The square root of 1020716501 is about 31948.6541344076. The cubic root of 1020716501 is about 1006.8583557574.

Adding to 1020716501 its reverse (1056170201), we get a palindrome (2076886702).

The spelling of 1020716501 in words is "one billion, twenty million, seven hundred sixteen thousand, five hundred one".