210143245 has 16 divisors (see below), whose sum is σ = 278196912. Its totient is φ = 151395840.

The previous prime is 210143243. The next prime is 210143261. The reversal of 210143245 is 542341012.

It can be written as a sum of positive squares in 8 ways, for example, as 116014441 + 94128804 = 10771^2 + 9702^2 .

It is not a de Polignac number, because 210143245 - 2¹ = 210143243 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (210143243) 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, 36762 + ... + 42091.

It is an arithmetic number, because the mean of its divisors is an integer number (17387307).

Almost surely, 2^210143245 is an apocalyptic number.

It is an amenable number.

210143245 is a deficient number, since it is larger than the sum of its proper divisors (68053667).

210143245 is a wasteful number, since it uses less digits than its factorization.

210143245 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 78912.

The product of its (nonzero) digits is 960, while the sum is 22.

The square root of 210143245 is about 14496.3183256991. The cubic root of 210143245 is about 594.5273133048.

Adding to 210143245 its reverse (542341012), we get a palindrome (752484257).

The spelling of 210143245 in words is "two hundred ten million, one hundred forty-three thousand, two hundred forty-five".