145538429 has 2 divisors, whose sum is σ = 145538430. Its totient is φ = 145538428.

The previous prime is 145538417. The next prime is 145538447. The reversal of 145538429 is 924835541.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 124835929 + 20702500 = 11173^2 + 4550^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-145538429 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (145538629) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 72769214 + 72769215.

It is an arithmetic number, because the mean of its divisors is an integer number (72769215).

Almost surely, 2^145538429 is an apocalyptic number.

It is an amenable number.

145538429 is a deficient number, since it is larger than the sum of its proper divisors (1).

145538429 is an equidigital number, since it uses as much as digits as its factorization.

145538429 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 172800, while the sum is 41.

The square root of 145538429 is about 12063.9309099481. The cubic root of 145538429 is about 526.0082562184.

The spelling of 145538429 in words is "one hundred forty-five million, five hundred thirty-eight thousand, four hundred twenty-nine".