210145146 has 8 divisors (see below), whose sum is σ = 420290304. Its totient is φ = 70048380.

The previous prime is 210145141. The next prime is 210145157. The reversal of 210145146 is 641541012.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

210145146 is an admirable number.

It is a super-2 number, since 2×210145146² = 88321964774722632, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (210145141) 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, 17512090 + ... + 17512101.

It is an arithmetic number, because the mean of its divisors is an integer number (52536288).

Almost surely, 2^210145146 is an apocalyptic number.

210145146 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

210145146 is a wasteful number, since it uses less digits than its factorization.

210145146 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35024196.

The product of its (nonzero) digits is 960, while the sum is 24.

The square root of 210145146 is about 14496.3838939233. The cubic root of 210145146 is about 594.5291060391.

Adding to 210145146 its reverse (641541012), we get a palindrome (851686158).

The spelling of 210145146 in words is "two hundred ten million, one hundred forty-five thousand, one hundred forty-six".