145102211 has 2 divisors, whose sum is σ = 145102212. Its totient is φ = 145102210.

The previous prime is 145102201. The next prime is 145102213. The reversal of 145102211 is 112201541.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-145102211 is a prime.

Together with 145102213, it forms a pair of twin primes.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 145102211.

It is not a weakly prime, because it can be changed into another prime (145102213) 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 as a sum of consecutive naturals, namely, 72551105 + 72551106.

It is an arithmetic number, because the mean of its divisors is an integer number (72551106).

Almost surely, 2^145102211 is an apocalyptic number.

145102211 is a deficient number, since it is larger than the sum of its proper divisors (1).

145102211 is an equidigital number, since it uses as much as digits as its factorization.

145102211 is an odious number, because the sum of its binary digits is odd.

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

The square root of 145102211 is about 12045.8379119097. The cubic root of 145102211 is about 525.4822006626.

Adding to 145102211 its reverse (112201541), we get a palindrome (257303752).

The spelling of 145102211 in words is "one hundred forty-five million, one hundred two thousand, two hundred eleven".