145535423 has 4 divisors (see below), whose sum is σ = 158765928. Its totient is φ = 132304920.

The previous prime is 145535417. The next prime is 145535431. The reversal of 145535423 is 324535541.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 145535423 - 2⁴ = 145535407 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 145535423.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (145535473) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6615236 + ... + 6615257.

It is an arithmetic number, because the mean of its divisors is an integer number (39691482).

Almost surely, 2^145535423 is an apocalyptic number.

145535423 is a deficient number, since it is larger than the sum of its proper divisors (13230505).

145535423 is a wasteful number, since it uses less digits than its factorization.

145535423 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13230504.

The product of its digits is 36000, while the sum is 32.

The square root of 145535423 is about 12063.8063230475. The cubic root of 145535423 is about 526.0046347426.

The spelling of 145535423 in words is "one hundred forty-five million, five hundred thirty-five thousand, four hundred twenty-three".