145332013 has 2 divisors, whose sum is σ = 145332014. Its totient is φ = 145332012.

The previous prime is 145331993. The next prime is 145332023. The reversal of 145332013 is 310233541.

145332013 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 108097609 + 37234404 = 10397^2 + 6102^2 .

It is a cyclic number.

It is not a de Polignac number, because 145332013 - 2⁵ = 145331981 is a prime.

It is a super-2 number, since 2×145332013² = 42242788005264338, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (145332023) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 72666006 + 72666007.

It is an arithmetic number, because the mean of its divisors is an integer number (72666007).

Almost surely, 2^145332013 is an apocalyptic number.

It is an amenable number.

145332013 is a deficient number, since it is larger than the sum of its proper divisors (1).

145332013 is an equidigital number, since it uses as much as digits as its factorization.

145332013 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1080, while the sum is 22.

The square root of 145332013 is about 12055.3727856089. The cubic root of 145332013 is about 525.7594607799.

Adding to 145332013 its reverse (310233541), we get a palindrome (455565554).

The spelling of 145332013 in words is "one hundred forty-five million, three hundred thirty-two thousand, thirteen".