145201211 has 4 divisors (see below), whose sum is σ = 152843400. Its totient is φ = 137559024.

The previous prime is 145201193. The next prime is 145201229. The reversal of 145201211 is 112102541.

145201211 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is an interprime number because it is at equal distance from previous prime (145201193) and next prime (145201229).

It is a cyclic number.

It is not a de Polignac number, because 145201211 - 2¹⁴ = 145184827 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 145201211.

It is not an unprimeable number, because it can be changed into a prime (145203211) 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, 3821066 + ... + 3821103.

It is an arithmetic number, because the mean of its divisors is an integer number (38210850).

Almost surely, 2^145201211 is an apocalyptic number.

145201211 is a deficient number, since it is larger than the sum of its proper divisors (7642189).

145201211 is an equidigital number, since it uses as much as digits as its factorization.

145201211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7642188.

The product of its (nonzero) digits is 80, while the sum is 17.

The square root of 145201211 is about 12049.9465144041. The cubic root of 145201211 is about 525.6016817526.

Adding to 145201211 its reverse (112102541), we get a palindrome (257303752).

The spelling of 145201211 in words is "one hundred forty-five million, two hundred one thousand, two hundred eleven".