509472147 has 8 divisors (see below), whose sum is σ = 679697344. Its totient is φ = 339447528.

The previous prime is 509472097. The next prime is 509472169. The reversal of 509472147 is 741274905.

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

It is not a de Polignac number, because 509472147 - 2¹² = 509468051 is a prime.

It is an alternating number because its digits alternate between odd and even.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (509472247) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 44113 + ... + 54450.

It is an arithmetic number, because the mean of its divisors is an integer number (84962168).

Almost surely, 2^509472147 is an apocalyptic number.

509472147 is a deficient number, since it is larger than the sum of its proper divisors (170225197).

509472147 is a wasteful number, since it uses less digits than its factorization.

509472147 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 100289.

The product of its (nonzero) digits is 70560, while the sum is 39.

The square root of 509472147 is about 22571.4896938594. The cubic root of 509472147 is about 798.6812371711.

The spelling of 509472147 in words is "five hundred nine million, four hundred seventy-two thousand, one hundred forty-seven".