1021023245 has 32 divisors (see below), whose sum is σ = 1404345600. Its totient is φ = 705379840.

The previous prime is 1021023229. The next prime is 1021023277. The reversal of 1021023245 is 5423201201.

It is not a de Polignac number, because 1021023245 - 2⁴ = 1021023229 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 185777 + ... + 191193.

It is an arithmetic number, because the mean of its divisors is an integer number (43885800).

Almost surely, 2^1021023245 is an apocalyptic number.

It is an amenable number.

1021023245 is a deficient number, since it is larger than the sum of its proper divisors (383322355).

1021023245 is a wasteful number, since it uses less digits than its factorization.

1021023245 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5605.

The product of its (nonzero) digits is 480, while the sum is 20.

The square root of 1021023245 is about 31953.4543516034. The cubic root of 1021023245 is about 1006.9592054469.

Adding to 1021023245 its reverse (5423201201), we get a palindrome (6444224446).

The spelling of 1021023245 in words is "one billion, twenty-one million, twenty-three thousand, two hundred forty-five".