1002265064 has 8 divisors (see below), whose sum is σ = 1879247010. Its totient is φ = 501132528.

The previous prime is 1002265063. The next prime is 1002265079. The reversal of 1002265064 is 4605622001.

1002265064 = 4546² + 4547² + ... + 4593².

It can be written as a sum of positive squares in only one way, i.e., 1002228964 + 36100 = 31658^2 + 190^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is not an unprimeable number, because it can be changed into a prime (1002265063) 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 as a sum of consecutive naturals, namely, 62641559 + ... + 62641574.

Almost surely, 2^1002265064 is an apocalyptic number.

It is an amenable number.

1002265064 is a deficient number, since it is larger than the sum of its proper divisors (876981946).

1002265064 is a wasteful number, since it uses less digits than its factorization.

1002265064 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 125283139 (or 125283135 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 26.

The square root of 1002265064 is about 31658.5701509086. The cubic root of 1002265064 is about 1000.7544519924.

Adding to 1002265064 its reverse (4605622001), we get a palindrome (5607887065).

The spelling of 1002265064 in words is "one billion, two million, two hundred sixty-five thousand, sixty-four".