1021505152 has 16 divisors (see below), whose sum is σ = 2035030050. Its totient is φ = 510752512.

The previous prime is 1021505143. The next prime is 1021505159. The reversal of 1021505152 is 2515051201.

It is a happy number.

1021505152 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 974938176 + 46566976 = 31224^2 + 6824^2 .

It is a tau number, because it is divible by the number of its divisors (16).

It is not an unprimeable number, because it can be changed into a prime (1021505159) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3990127 + ... + 3990382.

Almost surely, 2^1021505152 is an apocalyptic number.

It is an amenable number.

1021505152 is a deficient number, since it is larger than the sum of its proper divisors (1013524898).

1021505152 is an frugal number, since it uses more digits than its factorization.

1021505152 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7980523 (or 7980511 counting only the distinct ones).

The product of its (nonzero) digits is 500, while the sum is 22.

The square root of 1021505152 is about 31960.9942273390. The cubic root of 1021505152 is about 1007.1176035268.

Adding to 1021505152 its reverse (2515051201), we get a palindrome (3536556353).

The spelling of 1021505152 in words is "one billion, twenty-one million, five hundred five thousand, one hundred fifty-two".