515110145 has 16 divisors (see below), whose sum is σ = 674989632. Its totient is φ = 374256960.

The previous prime is 515110117. The next prime is 515110147. The reversal of 515110145 is 541011515.

It is not a de Polignac number, because 515110145 - 2¹⁰ = 515109121 is a prime.

It is a super-2 number, since 2×515110145² = 530676922963842050, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 515110145.

It is not an unprimeable number, because it can be changed into a prime (515110147) 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, 59939 + ... + 67991.

It is an arithmetic number, because the mean of its divisors is an integer number (42186852).

Almost surely, 2^515110145 is an apocalyptic number.

515110145 is a gapful number since it is divisible by the number (55) formed by its first and last digit.

It is an amenable number.

515110145 is a deficient number, since it is larger than the sum of its proper divisors (159879487).

515110145 is a wasteful number, since it uses less digits than its factorization.

515110145 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9232.

The product of its (nonzero) digits is 500, while the sum is 23.

The square root of 515110145 is about 22696.0380903804. The cubic root of 515110145 is about 801.6165982497.

The spelling of 515110145 in words is "five hundred fifteen million, one hundred ten thousand, one hundred forty-five".