509112901 has 8 divisors (see below), whose sum is σ = 559770624. Its totient is φ = 459184320.

The previous prime is 509112899. The next prime is 509112911. The reversal of 509112901 is 109211905.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 509112901 - 2¹ = 509112899 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 509112901.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (509112911) 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, 180820 + ... + 183613.

It is an arithmetic number, because the mean of its divisors is an integer number (69971328).

Almost surely, 2^509112901 is an apocalyptic number.

It is an amenable number.

509112901 is a deficient number, since it is larger than the sum of its proper divisors (50657723).

509112901 is a wasteful number, since it uses less digits than its factorization.

509112901 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 364571.

The product of its (nonzero) digits is 810, while the sum is 28.

The square root of 509112901 is about 22563.5303310453. The cubic root of 509112901 is about 798.4934673342.

The spelling of 509112901 in words is "five hundred nine million, one hundred twelve thousand, nine hundred one".