1009358612 has 24 divisors (see below), whose sum is σ = 1891307880. Its totient is φ = 469652480.

The previous prime is 1009358593. The next prime is 1009358617. The reversal of 1009358612 is 2168539001.

It can be written as a sum of positive squares in 4 ways, for example, as 23775376 + 985583236 = 4876^2 + 31394^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1009358617) 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, 77339 + ... + 89442.

It is an arithmetic number, because the mean of its divisors is an integer number (78804495).

Almost surely, 2^1009358612 is an apocalyptic number.

It is an amenable number.

1009358612 is a deficient number, since it is larger than the sum of its proper divisors (881949268).

1009358612 is a wasteful number, since it uses less digits than its factorization.

1009358612 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 166891 (or 166889 counting only the distinct ones).

The product of its (nonzero) digits is 12960, while the sum is 35.

The square root of 1009358612 is about 31770.4046559058. The cubic root of 1009358612 is about 1003.1098561030.

The spelling of 1009358612 in words is "one billion, nine million, three hundred fifty-eight thousand, six hundred twelve".