252045105 has 16 divisors (see below), whose sum is σ = 434293440. Its totient is φ = 124083648.

The previous prime is 252045011. The next prime is 252045113. The reversal of 252045105 is 501540252.

It is a happy number.

It is not a de Polignac number, because 252045105 - 2¹⁰ = 252044081 is a prime.

It is a super-2 number, since 2×252045105² = 127053469908922050, which contains 22 as substring.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 646075 + ... + 646464.

It is an arithmetic number, because the mean of its divisors is an integer number (27143340).

Almost surely, 2^252045105 is an apocalyptic number.

It is an amenable number.

252045105 is a deficient number, since it is larger than the sum of its proper divisors (182248335).

252045105 is a wasteful number, since it uses less digits than its factorization.

252045105 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1292560.

The product of its (nonzero) digits is 2000, while the sum is 24.

The square root of 252045105 is about 15875.9284767852. The cubic root of 252045105 is about 631.6736426232.

Adding to 252045105 its reverse (501540252), we get a palindrome (753585357).

The spelling of 252045105 in words is "two hundred fifty-two million, forty-five thousand, one hundred five".