1010721745 has 8 divisors (see below), whose sum is σ = 1323126720. Its totient is φ = 735070320.

The previous prime is 1010721731. The next prime is 1010721769. The reversal of 1010721745 is 5471270101.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1010721745 - 2⁹ = 1010721233 is a prime.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9188325 + ... + 9188434.

It is an arithmetic number, because the mean of its divisors is an integer number (165390840).

Almost surely, 2^1010721745 is an apocalyptic number.

It is an amenable number.

1010721745 is a deficient number, since it is larger than the sum of its proper divisors (312404975).

1010721745 is a wasteful number, since it uses less digits than its factorization.

1010721745 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18376775.

The product of its (nonzero) digits is 1960, while the sum is 28.

The square root of 1010721745 is about 31791.8502921739. The cubic root of 1010721745 is about 1003.5612176739.

Adding to 1010721745 its reverse (5471270101), we get a palindrome (6481991846).

The spelling of 1010721745 in words is "one billion, ten million, seven hundred twenty-one thousand, seven hundred forty-five".