509479101 has 12 divisors (see below), whose sum is σ = 748388160. Its totient is φ = 333895560.

The previous prime is 509479099. The next prime is 509479153. The reversal of 509479101 is 101974905.

509479101 is a `hidden beast` number, since 509 + 47 + 9 + 101 = 666.

It is not a de Polignac number, because 509479101 - 2¹ = 509479099 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (509429101) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 479205 + ... + 480266.

It is an arithmetic number, because the mean of its divisors is an integer number (62365680).

Almost surely, 2^509479101 is an apocalyptic number.

It is an amenable number.

509479101 is a deficient number, since it is larger than the sum of its proper divisors (238909059).

509479101 is a wasteful number, since it uses less digits than its factorization.

509479101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 959536 (or 959533 counting only the distinct ones).

The product of its (nonzero) digits is 11340, while the sum is 36.

The square root of 509479101 is about 22571.6437372204. The cubic root of 509479101 is about 798.6848710002.

The spelling of 509479101 in words is "five hundred nine million, four hundred seventy-nine thousand, one hundred one".