515012132 has 24 divisors (see below), whose sum is σ = 915872832. Its totient is φ = 253349600.

The previous prime is 515012129. The next prime is 515012137. The reversal of 515012132 is 231210515.

It is a happy number.

It is a super-2 number, since 2×515012132² = 530474992214370848, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (515012137) 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, 158282 + ... + 161502.

It is an arithmetic number, because the mean of its divisors is an integer number (38161368).

Almost surely, 2^515012132 is an apocalyptic number.

It is an amenable number.

515012132 is a deficient number, since it is larger than the sum of its proper divisors (400860700).

515012132 is a wasteful number, since it uses less digits than its factorization.

515012132 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3859 (or 3857 counting only the distinct ones).

The product of its (nonzero) digits is 300, while the sum is 20.

The square root of 515012132 is about 22693.8787341433. The cubic root of 515012132 is about 801.5657522755.

Adding to 515012132 its reverse (231210515), we get a palindrome (746222647).

The spelling of 515012132 in words is "five hundred fifteen million, twelve thousand, one hundred thirty-two".