145555541 has 8 divisors (see below), whose sum is σ = 147312000. Its totient is φ = 143809120.

The previous prime is 145555511. The next prime is 145555591.

145555541 is nontrivially palindromic in base 10.

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 145555541 - 2¹⁸ = 145293397 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (145555511) 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, 28985 + ... + 33633.

It is an arithmetic number, because the mean of its divisors is an integer number (18414000).

Almost surely, 2^145555541 is an apocalyptic number.

It is an amenable number.

145555541 is a deficient number, since it is larger than the sum of its proper divisors (1756459).

145555541 is a wasteful number, since it uses less digits than its factorization.

145555541 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5019.

The product of its digits is 50000, while the sum is 35.

The square root of 145555541 is about 12064.6401106705. The cubic root of 145555541 is about 526.0288709353.

Subtracting from 145555541 its product of digits (50000), we obtain a palindrome (145505541).

It can be divided in two parts, 14 and 5555541, that added together give a palindrome (5555555).

The spelling of 145555541 in words is "one hundred forty-five million, five hundred fifty-five thousand, five hundred forty-one".