514531661 has 8 divisors (see below), whose sum is σ = 595480320. Its totient is φ = 435444048.

The previous prime is 514531621. The next prime is 514531669. The reversal of 514531661 is 166135415.

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 514531661 - 2¹⁸ = 514269517 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (514531669) 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, 464666 + ... + 465771.

It is an arithmetic number, because the mean of its divisors is an integer number (74435040).

Almost surely, 2^514531661 is an apocalyptic number.

It is an amenable number.

514531661 is a deficient number, since it is larger than the sum of its proper divisors (80948659).

514531661 is an equidigital number, since it uses as much as digits as its factorization.

514531661 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 930523.

The product of its digits is 10800, while the sum is 32.

The square root of 514531661 is about 22683.2903477428. The cubic root of 514531661 is about 801.3164060931.

The spelling of 514531661 in words is "five hundred fourteen million, five hundred thirty-one thousand, six hundred sixty-one".