1025204136 has 64 divisors (see below), whose sum is σ = 2823768000. Its totient is φ = 307584000.

The previous prime is 1025204113. The next prime is 1025204137. The reversal of 1025204136 is 6314025201.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is not an unprimeable number, because it can be changed into a prime (1025204137) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7440 + ... + 45888.

It is an arithmetic number, because the mean of its divisors is an integer number (44121375).

Almost surely, 2^1025204136 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1025204136, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1411884000).

1025204136 is an abundant number, since it is smaller than the sum of its proper divisors (1798563864).

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

1025204136 is a wasteful number, since it uses less digits than its factorization.

1025204136 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38570 (or 38566 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 24.

The square root of 1025204136 is about 32018.8090971541. The cubic root of 1025204136 is about 1008.3317675241.

Adding to 1025204136 its reverse (6314025201), we get a palindrome (7339229337).

The spelling of 1025204136 in words is "one billion, twenty-five million, two hundred four thousand, one hundred thirty-six".