1021064252 has 24 divisors (see below), whose sum is σ = 1939478016. Its totient is φ = 467546688.

The previous prime is 1021064243. The next prime is 1021064269. The reversal of 1021064252 is 2524601201.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 70703 + ... + 83910.

It is an arithmetic number, because the mean of its divisors is an integer number (80811584).

Almost surely, 2^1021064252 is an apocalyptic number.

It is an amenable number.

1021064252 is a deficient number, since it is larger than the sum of its proper divisors (918413764).

1021064252 is a wasteful number, since it uses less digits than its factorization.

1021064252 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 154757 (or 154755 counting only the distinct ones).

The product of its (nonzero) digits is 960, while the sum is 23.

The square root of 1021064252 is about 31954.0960128745. The cubic root of 1021064252 is about 1006.9726859833.

Adding to 1021064252 its reverse (2524601201), we get a palindrome (3545665453).

The spelling of 1021064252 in words is "one billion, twenty-one million, sixty-four thousand, two hundred fifty-two".