1021330145 has 24 divisors (see below), whose sum is σ = 1354812480. Its totient is φ = 738557600.

The previous prime is 1021330139. The next prime is 1021330147. The reversal of 1021330145 is 5410331201.

It is not a de Polignac number, because 1021330145 - 2⁶ = 1021330081 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1021330147) 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 in 23 ways as a sum of consecutive naturals, for example, 103580 + ... + 113010.

It is an arithmetic number, because the mean of its divisors is an integer number (56450520).

Almost surely, 2^1021330145 is an apocalyptic number.

It is an amenable number.

1021330145 is a deficient number, since it is larger than the sum of its proper divisors (333482335).

1021330145 is a wasteful number, since it uses less digits than its factorization.

1021330145 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9637 (or 9626 counting only the distinct ones).

The product of its (nonzero) digits is 360, while the sum is 20.

The square root of 1021330145 is about 31958.2562884773. The cubic root of 1021330145 is about 1007.0600862131.

Adding to 1021330145 its reverse (5410331201), we get a palindrome (6431661346).

The spelling of 1021330145 in words is "one billion, twenty-one million, three hundred thirty thousand, one hundred forty-five".