145102213 has 2 divisors, whose sum is σ = 145102214. Its totient is φ = 145102212.

The previous prime is 145102211. The next prime is 145102241. The reversal of 145102213 is 312201541.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 126292644 + 18809569 = 11238^2 + 4337^2 .

It is a cyclic number.

It is not a de Polignac number, because 145102213 - 2¹ = 145102211 is a prime.

Together with 145102211, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (145102211) 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, 72551106 + 72551107.

It is an arithmetic number, because the mean of its divisors is an integer number (72551107).

Almost surely, 2^145102213 is an apocalyptic number.

It is an amenable number.

145102213 is a deficient number, since it is larger than the sum of its proper divisors (1).

145102213 is an equidigital number, since it uses as much as digits as its factorization.

145102213 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 240, while the sum is 19.

The square root of 145102213 is about 12045.8379949259. The cubic root of 145102213 is about 525.4822030769.

Adding to 145102213 its reverse (312201541), we get a palindrome (457303754).

The spelling of 145102213 in words is "one hundred forty-five million, one hundred two thousand, two hundred thirteen".