145063213 has 2 divisors, whose sum is σ = 145063214. Its totient is φ = 145063212.

The previous prime is 145063189. The next prime is 145063327. The reversal of 145063213 is 312360541.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 144913444 + 149769 = 12038^2 + 387^2 .

It is a cyclic number.

It is not a de Polignac number, because 145063213 - 2⁵ = 145063181 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (145063013) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 72531606 + 72531607.

It is an arithmetic number, because the mean of its divisors is an integer number (72531607).

Almost surely, 2^145063213 is an apocalyptic number.

It is an amenable number.

145063213 is a deficient number, since it is larger than the sum of its proper divisors (1).

145063213 is an equidigital number, since it uses as much as digits as its factorization.

145063213 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2160, while the sum is 25.

The square root of 145063213 is about 12044.2190697446. The cubic root of 145063213 is about 525.4351198476.

The spelling of 145063213 in words is "one hundred forty-five million, sixty-three thousand, two hundred thirteen".