516146969 has 8 divisors (see below), whose sum is σ = 556454472. Its totient is φ = 475925760.

The previous prime is 516146947. The next prime is 516146971. The reversal of 516146969 is 969641615.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 41473600 + 474673369 = 6440^2 + 21787^2 .

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 516146969 - 2²⁴ = 499369753 is a prime.

It is a super-2 number, since 2×516146969² = 532815387215773922, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (516146999) 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, 8864 + ... + 33329.

It is an arithmetic number, because the mean of its divisors is an integer number (69556809).

Almost surely, 2^516146969 is an apocalyptic number.

It is an amenable number.

516146969 is a deficient number, since it is larger than the sum of its proper divisors (40307503).

516146969 is a wasteful number, since it uses less digits than its factorization.

516146969 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43147.

The product of its digits is 349920, while the sum is 47.

The square root of 516146969 is about 22718.8681276159. The cubic root of 516146969 is about 802.1540744359.

The spelling of 516146969 in words is "five hundred sixteen million, one hundred forty-six thousand, nine hundred sixty-nine".