146720250 has 96 divisors (see below), whose sum is σ = 403612560. Its totient is φ = 38448000.

The previous prime is 146720239. The next prime is 146720269. The reversal of 146720250 is 52027641.

It can be written as a sum of positive squares in 8 ways, for example, as 2792241 + 143928009 = 1671^2 + 11997^2 .

It is a Curzon number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 136716 + ... + 137784.

Almost surely, 2^146720250 is an apocalyptic number.

146720250 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 146720250, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (201806280).

146720250 is an abundant number, since it is smaller than the sum of its proper divisors (256892310).

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

146720250 is a wasteful number, since it uses less digits than its factorization.

146720250 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1153 (or 1140 counting only the distinct ones).

The product of its (nonzero) digits is 3360, while the sum is 27.

The square root of 146720250 is about 12112.8134634361. The cubic root of 146720250 is about 527.4282076251.

Adding to 146720250 its reverse (52027641), we get a palindrome (198747891).

The spelling of 146720250 in words is "one hundred forty-six million, seven hundred twenty thousand, two hundred fifty".