145205413 has 2 divisors, whose sum is σ = 145205414. Its totient is φ = 145205412.

The previous prime is 145205363. The next prime is 145205441. The reversal of 145205413 is 314502541.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 80676324 + 64529089 = 8982^2 + 8033^2 .

It is an emirp because it is prime and its reverse (314502541) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 145205413 - 2¹⁷ = 145074341 is a prime.

It is a super-2 number, since 2×145205413² = 42169223929001138, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (145205443) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 72602706 + 72602707.

It is an arithmetic number, because the mean of its divisors is an integer number (72602707).

Almost surely, 2^145205413 is an apocalyptic number.

It is an amenable number.

145205413 is a deficient number, since it is larger than the sum of its proper divisors (1).

145205413 is an equidigital number, since it uses as much as digits as its factorization.

145205413 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2400, while the sum is 25.

The square root of 145205413 is about 12050.1208707631. The cubic root of 145205413 is about 525.6067518595.

Adding to 145205413 its reverse (314502541), we get a palindrome (459707954).

The spelling of 145205413 in words is "one hundred forty-five million, two hundred five thousand, four hundred thirteen".