1022145204 has 24 divisors (see below), whose sum is σ = 2510532640. Its totient is φ = 322782624.

The previous prime is 1022145199. The next prime is 1022145209. The reversal of 1022145204 is 4025412201.

It is an interprime number because it is at equal distance from previous prime (1022145199) and next prime (1022145209).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1022145209) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2241319 + ... + 2241774.

Almost surely, 2^1022145204 is an apocalyptic number.

It is an amenable number.

1022145204 is an abundant number, since it is smaller than the sum of its proper divisors (1488387436).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1022145204 is a wasteful number, since it uses less digits than its factorization.

1022145204 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4483119 (or 4483117 counting only the distinct ones).

The product of its (nonzero) digits is 640, while the sum is 21.

The square root of 1022145204 is about 31971.0056770193. The cubic root of 1022145204 is about 1007.3279053054.

Adding to 1022145204 its reverse (4025412201), we get a palindrome (5047557405).

The spelling of 1022145204 in words is "one billion, twenty-two million, one hundred forty-five thousand, two hundred four".