145435399 has 2 divisors, whose sum is σ = 145435400. Its totient is φ = 145435398.

The previous prime is 145435387. The next prime is 145435427. The reversal of 145435399 is 993534541.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 145435399 - 2¹³ = 145427207 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (145435309) 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, 72717699 + 72717700.

It is an arithmetic number, because the mean of its divisors is an integer number (72717700).

Almost surely, 2^145435399 is an apocalyptic number.

145435399 is a deficient number, since it is larger than the sum of its proper divisors (1).

145435399 is an equidigital number, since it uses as much as digits as its factorization.

145435399 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 291600, while the sum is 43.

The square root of 145435399 is about 12059.6599869151. The cubic root of 145435399 is about 525.8841024706.

The spelling of 145435399 in words is "one hundred forty-five million, four hundred thirty-five thousand, three hundred ninety-nine".