210125144 has 16 divisors (see below), whose sum is σ = 394456200. Its totient is φ = 104936832.

The previous prime is 210125143. The next prime is 210125159. The reversal of 210125144 is 441521012.

It is a happy number.

It is a super-2 number, since 2×210125144² = 88305152282041472, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (210125141) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8417 + ... + 22160.

Almost surely, 2^210125144 is an apocalyptic number.

It is an amenable number.

210125144 is a deficient number, since it is larger than the sum of its proper divisors (184331056).

210125144 is a wasteful number, since it uses less digits than its factorization.

210125144 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31442 (or 31438 counting only the distinct ones).

The product of its (nonzero) digits is 320, while the sum is 20.

The square root of 210125144 is about 14495.6939813173. The cubic root of 210125144 is about 594.5102426508.

Adding to 210125144 its reverse (441521012), we get a palindrome (651646156).

The spelling of 210125144 in words is "two hundred ten million, one hundred twenty-five thousand, one hundred forty-four".