515034231 has 16 divisors (see below), whose sum is σ = 700618464. Its totient is φ = 336420864.

The previous prime is 515034211. The next prime is 515034253. The reversal of 515034231 is 132430515.

It is not a de Polignac number, because 515034231 - 2⁹ = 515033719 is a prime.

It is a super-2 number, since 2×515034231² = 530520518203522722, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (515034211) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 147255 + ... + 150711.

It is an arithmetic number, because the mean of its divisors is an integer number (43788654).

Almost surely, 2^515034231 is an apocalyptic number.

515034231 is a deficient number, since it is larger than the sum of its proper divisors (185584233).

515034231 is a wasteful number, since it uses less digits than its factorization.

515034231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4450.

The product of its (nonzero) digits is 1800, while the sum is 24.

The square root of 515034231 is about 22694.3656223301. The cubic root of 515034231 is about 801.5772170852.

Adding to 515034231 its reverse (132430515), we get a palindrome (647464746).

The spelling of 515034231 in words is "five hundred fifteen million, thirty-four thousand, two hundred thirty-one".