506997145 has 8 divisors (see below), whose sum is σ = 608981760. Its totient is φ = 405207600.

The previous prime is 506997097. The next prime is 506997151. The reversal of 506997145 is 541799605.

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-506997145 is a prime.

It is a super-2 number, since 2×506997145² = 514092210076302050, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 506997095 and 506997104.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 42985 + ... + 53494.

It is an arithmetic number, because the mean of its divisors is an integer number (76122720).

Almost surely, 2^506997145 is an apocalyptic number.

It is an amenable number.

506997145 is a deficient number, since it is larger than the sum of its proper divisors (101984615).

506997145 is a wasteful number, since it uses less digits than its factorization.

506997145 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 97535.

The product of its (nonzero) digits is 340200, while the sum is 46.

The square root of 506997145 is about 22516.5971008054. The cubic root of 506997145 is about 797.3858131932.

The spelling of 506997145 in words is "five hundred six million, nine hundred ninety-seven thousand, one hundred forty-five".