492972145 has 8 divisors (see below), whose sum is σ = 591696360. Its totient is φ = 394291200.

The previous prime is 492972121. The next prime is 492972187. The reversal of 492972145 is 541279294.

It can be written as a sum of positive squares in 4 ways, for example, as 8928144 + 484044001 = 2988^2 + 22001^2 .

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

It is a de Polignac number, because none of the positive numbers 2^k-492972145 is a prime.

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 in 7 ways as a sum of consecutive naturals, for example, 25095 + ... + 40195.

It is an arithmetic number, because the mean of its divisors is an integer number (73962045).

Almost surely, 2^492972145 is an apocalyptic number.

It is an amenable number.

492972145 is a deficient number, since it is larger than the sum of its proper divisors (98724215).

492972145 is a wasteful number, since it uses less digits than its factorization.

492972145 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21635.

The product of its digits is 181440, while the sum is 43.

The square root of 492972145 is about 22202.9760392610. The cubic root of 492972145 is about 789.9642909672.

The spelling of 492972145 in words is "four hundred ninety-two million, nine hundred seventy-two thousand, one hundred forty-five".