145990210 has 16 divisors (see below), whose sum is σ = 263533176. Its totient is φ = 58229248.

The previous prime is 145990193. The next prime is 145990213. The reversal of 145990210 is 12099541.

It can be written as a sum of positive squares in 4 ways, for example, as 121418361 + 24571849 = 11019^2 + 4957^2 .

It is not an unprimeable number, because it can be changed into a prime (145990213) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 17149 + ... + 24208.

Almost surely, 2^145990210 is an apocalyptic number.

145990210 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

145990210 is a deficient number, since it is larger than the sum of its proper divisors (117542966).

145990210 is a wasteful number, since it uses less digits than its factorization.

145990210 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41717.

The product of its (nonzero) digits is 3240, while the sum is 31.

The square root of 145990210 is about 12082.6408537207. The cubic root of 145990210 is about 526.5519730129.

The spelling of 145990210 in words is "one hundred forty-five million, nine hundred ninety thousand, two hundred ten".