1009521038 has 4 divisors (see below), whose sum is σ = 1514281560. Its totient is φ = 504760518.

The previous prime is 1009521011. The next prime is 1009521043. The reversal of 1009521038 is 8301259001.

It is a semiprime because it is the product of two primes.

It is a self number, because there is not a number n which added to its sum of digits gives 1009521038.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 252380258 + ... + 252380261.

It is an arithmetic number, because the mean of its divisors is an integer number (378570390).

Almost surely, 2^1009521038 is an apocalyptic number.

1009521038 is a deficient number, since it is larger than the sum of its proper divisors (504760522).

1009521038 is an equidigital number, since it uses as much as digits as its factorization.

1009521038 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 504760521.

The product of its (nonzero) digits is 2160, while the sum is 29.

The square root of 1009521038 is about 31772.9608000262. The cubic root of 1009521038 is about 1003.1636600338.

The spelling of 1009521038 in words is "one billion, nine million, five hundred twenty-one thousand, thirty-eight".