210252045 has 32 divisors (see below), whose sum is σ = 343464192. Its totient is φ = 109804032.

The previous prime is 210252041. The next prime is 210252047. The reversal of 210252045 is 540252012.

It is a happy number.

It is not a de Polignac number, because 210252045 - 2² = 210252041 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (210252041) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 171304 + ... + 172526.

It is an arithmetic number, because the mean of its divisors is an integer number (10733256).

Almost surely, 2^210252045 is an apocalyptic number.

It is an amenable number.

210252045 is a deficient number, since it is larger than the sum of its proper divisors (133212147).

210252045 is a wasteful number, since it uses less digits than its factorization.

210252045 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1461.

The product of its (nonzero) digits is 800, while the sum is 21.

The square root of 210252045 is about 14500.0705170699. The cubic root of 210252045 is about 594.6298995377.

The spelling of 210252045 in words is "two hundred ten million, two hundred fifty-two thousand, forty-five".