145250201 has 2 divisors, whose sum is σ = 145250202. Its totient is φ = 145250200.

The previous prime is 145250191. The next prime is 145250233. The reversal of 145250201 is 102052541.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 140304025 + 4946176 = 11845^2 + 2224^2 .

It is a cyclic number.

It is not a de Polignac number, because 145250201 - 2⁶ = 145250137 is a prime.

It is not a weakly prime, because it can be changed into another prime (145250251) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 72625100 + 72625101.

It is an arithmetic number, because the mean of its divisors is an integer number (72625101).

Almost surely, 2^145250201 is an apocalyptic number.

It is an amenable number.

145250201 is a deficient number, since it is larger than the sum of its proper divisors (1).

145250201 is an equidigital number, since it uses as much as digits as its factorization.

145250201 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 400, while the sum is 20.

The square root of 145250201 is about 12051.9791320762. The cubic root of 145250201 is about 525.6607867029.

The spelling of 145250201 in words is "one hundred forty-five million, two hundred fifty thousand, two hundred one".