1035121664 has 22 divisors (see below), whose sum is σ = 2069234514. Its totient is φ = 517560320.

The previous prime is 1035121663. The next prime is 1035121669. The reversal of 1035121664 is 4661215301.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 876160000 + 158961664 = 29600^2 + 12608^2 .

It is a super-3 number, since 3×1035121664³ (a number of 28 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1035121663) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 504407 + ... + 506454.

Almost surely, 2^1035121664 is an apocalyptic number.

It is an amenable number.

1035121664 is a deficient number, since it is larger than the sum of its proper divisors (1034112850).

1035121664 is an equidigital number, since it uses as much as digits as its factorization.

1035121664 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1010881 (or 1010863 counting only the distinct ones).

The product of its (nonzero) digits is 4320, while the sum is 29.

The square root of 1035121664 is about 32173.3066998094. The cubic root of 1035121664 is about 1011.5727755553.

Adding to 1035121664 its reverse (4661215301), we get a palindrome (5696336965).

The spelling of 1035121664 in words is "one billion, thirty-five million, one hundred twenty-one thousand, six hundred sixty-four".