1036521138 has 16 divisors (see below), whose sum is σ = 2075188896. Its totient is φ = 345149280.

The previous prime is 1036521137. The next prime is 1036521163. The reversal of 1036521138 is 8311256301.

1036521138 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (1036521137) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 83131 + ... + 94782.

It is an arithmetic number, because the mean of its divisors is an integer number (129699306).

Almost surely, 2^1036521138 is an apocalyptic number.

1036521138 is an abundant number, since it is smaller than the sum of its proper divisors (1038667758).

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

1036521138 is a wasteful number, since it uses less digits than its factorization.

1036521138 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 178889.

The product of its (nonzero) digits is 4320, while the sum is 30.

The square root of 1036521138 is about 32195.0483459802. The cubic root of 1036521138 is about 1012.0284489755.

Adding to 1036521138 its reverse (8311256301), we get a palindrome (9347777439).

The spelling of 1036521138 in words is "one billion, thirty-six million, five hundred twenty-one thousand, one hundred thirty-eight".