145535473 has 2 divisors, whose sum is σ = 145535474. Its totient is φ = 145535472.

The previous prime is 145535471. The next prime is 145535479. The reversal of 145535473 is 374535541.

145535473 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 90003169 + 55532304 = 9487^2 + 7452^2 .

It is an emirp because it is prime and its reverse (374535541) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 145535473 - 2¹ = 145535471 is a prime.

Together with 145535471, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (145535471) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 72767736 + 72767737.

It is an arithmetic number, because the mean of its divisors is an integer number (72767737).

Almost surely, 2^145535473 is an apocalyptic number.

It is an amenable number.

145535473 is a deficient number, since it is larger than the sum of its proper divisors (1).

145535473 is an equidigital number, since it uses as much as digits as its factorization.

145535473 is an evil number, because the sum of its binary digits is even.

The product of its digits is 126000, while the sum is 37.

The square root of 145535473 is about 12063.8083953617. The cubic root of 145535473 is about 526.0046949804.

The spelling of 145535473 in words is "one hundred forty-five million, five hundred thirty-five thousand, four hundred seventy-three".