515400213 has 8 divisors (see below), whose sum is σ = 723368800. Its totient is φ = 325515888.

The previous prime is 515400191. The next prime is 515400233. The reversal of 515400213 is 312004515.

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

It is not a de Polignac number, because 515400213 - 2⁸ = 515399957 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 515400213.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (515400233) 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, 4520998 + ... + 4521111.

It is an arithmetic number, because the mean of its divisors is an integer number (90421100).

Almost surely, 2^515400213 is an apocalyptic number.

It is an amenable number.

515400213 is a deficient number, since it is larger than the sum of its proper divisors (207968587).

515400213 is a wasteful number, since it uses less digits than its factorization.

515400213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9042131.

The product of its (nonzero) digits is 600, while the sum is 21.

The square root of 515400213 is about 22702.4274693258. The cubic root of 515400213 is about 801.7670383664.

Adding to 515400213 its reverse (312004515), we get a palindrome (827404728).

The spelling of 515400213 in words is "five hundred fifteen million, four hundred thousand, two hundred thirteen".