145140211 has 2 divisors, whose sum is σ = 145140212. Its totient is φ = 145140210.

The previous prime is 145140209. The next prime is 145140217. The reversal of 145140211 is 112041541.

It is a weak prime.

It is an emirp because it is prime and its reverse (112041541) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 145140211 - 2¹ = 145140209 is a prime.

Together with 145140209, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (145140217) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 72570105 + 72570106.

It is an arithmetic number, because the mean of its divisors is an integer number (72570106).

Almost surely, 2^145140211 is an apocalyptic number.

145140211 is a deficient number, since it is larger than the sum of its proper divisors (1).

145140211 is an equidigital number, since it uses as much as digits as its factorization.

145140211 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 160, while the sum is 19.

The square root of 145140211 is about 12047.4151169452. The cubic root of 145140211 is about 525.5280685158.

Adding to 145140211 its reverse (112041541), we get a palindrome (257181752).

The spelling of 145140211 in words is "one hundred forty-five million, one hundred forty thousand, two hundred eleven".