514338991 has 4 divisors (see below), whose sum is σ = 514673872. Its totient is φ = 514004112.

The previous prime is 514338989. The next prime is 514339009. The reversal of 514338991 is 199833415.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 514338991 - 2¹ = 514338989 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 (514338971) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 165126 + ... + 168211.

It is an arithmetic number, because the mean of its divisors is an integer number (128668468).

Almost surely, 2^514338991 is an apocalyptic number.

514338991 is a deficient number, since it is larger than the sum of its proper divisors (334881).

514338991 is a wasteful number, since it uses less digits than its factorization.

514338991 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 334880.

The product of its digits is 116640, while the sum is 43.

The square root of 514338991 is about 22679.0429912728. The cubic root of 514338991 is about 801.2163740844.

The spelling of 514338991 in words is "five hundred fourteen million, three hundred thirty-eight thousand, nine hundred ninety-one".