145555423 has 8 divisors (see below), whose sum is σ = 159092528. Its totient is φ = 132352704.

The previous prime is 145555391. The next prime is 145555429. The reversal of 145555423 is 324555541.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 145555423 - 2⁵ = 145555391 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (145555429) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 82686 + ... + 84427.

It is an arithmetic number, because the mean of its divisors is an integer number (19886566).

Almost surely, 2^145555423 is an apocalyptic number.

145555423 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

145555423 is a deficient number, since it is larger than the sum of its proper divisors (13537105).

145555423 is a wasteful number, since it uses less digits than its factorization.

145555423 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 167193.

The product of its digits is 60000, while the sum is 34.

The square root of 145555423 is about 12064.6352203455. The cubic root of 145555423 is about 526.0287287870.

The spelling of 145555423 in words is "one hundred forty-five million, five hundred fifty-five thousand, four hundred twenty-three".