1021046225 has 24 divisors (see below), whose sum is σ = 1375745280. Its totient is φ = 748872000.

The previous prime is 1021046179. The next prime is 1021046237. The reversal of 1021046225 is 5226401201.

It is a happy number.

It is not a de Polignac number, because 1021046225 - 2⁶ = 1021046161 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1021046225.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 19946 + ... + 49395.

It is an arithmetic number, because the mean of its divisors is an integer number (57322720).

Almost surely, 2^1021046225 is an apocalyptic number.

It is an amenable number.

1021046225 is a deficient number, since it is larger than the sum of its proper divisors (354699055).

1021046225 is a wasteful number, since it uses less digits than its factorization.

1021046225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 69401 (or 69396 counting only the distinct ones).

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

The square root of 1021046225 is about 31953.8139351158. The cubic root of 1021046225 is about 1006.9667598778.

Adding to 1021046225 its reverse (5226401201), we get a palindrome (6247447426).

The spelling of 1021046225 in words is "one billion, twenty-one million, forty-six thousand, two hundred twenty-five".