210246145 has 16 divisors (see below), whose sum is σ = 255923712. Its totient is φ = 165793600.

The previous prime is 210246109. The next prime is 210246233. The reversal of 210246145 is 541642012.

It is a happy number.

It is not a de Polignac number, because 210246145 - 2⁷ = 210246017 is a prime.

It is a super-2 number, since 2×210246145² = 88406882974722050, which contains 22 as substring.

It is a Duffinian 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, 132024 + ... + 133606.

It is an arithmetic number, because the mean of its divisors is an integer number (15995232).

Almost surely, 2^210246145 is an apocalyptic number.

It is an amenable number.

210246145 is a deficient number, since it is larger than the sum of its proper divisors (45677567).

210246145 is a wasteful number, since it uses less digits than its factorization.

210246145 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1952.

The product of its (nonzero) digits is 1920, while the sum is 25.

The square root of 210246145 is about 14499.8670683562. The cubic root of 210246145 is about 594.6243374051.

Adding to 210246145 its reverse (541642012), we get a palindrome (751888157).

The spelling of 210246145 in words is "two hundred ten million, two hundred forty-six thousand, one hundred forty-five".