145011423 has 4 divisors (see below), whose sum is σ = 193348568. Its totient is φ = 96674280.

The previous prime is 145011421. The next prime is 145011443. The reversal of 145011423 is 324110541.

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

It is not a de Polignac number, because 145011423 - 2¹ = 145011421 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 145011423.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (145011421) 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, 24168568 + ... + 24168573.

It is an arithmetic number, because the mean of its divisors is an integer number (48337142).

Almost surely, 2^145011423 is an apocalyptic number.

145011423 is a deficient number, since it is larger than the sum of its proper divisors (48337145).

145011423 is an equidigital number, since it uses as much as digits as its factorization.

145011423 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 48337144.

The product of its (nonzero) digits is 480, while the sum is 21.

The square root of 145011423 is about 12042.0688837093. The cubic root of 145011423 is about 525.3725826880.

Adding to 145011423 its reverse (324110541), we get a palindrome (469121964).

The spelling of 145011423 in words is "one hundred forty-five million, eleven thousand, four hundred twenty-three".