145505541 has 8 divisors (see below), whose sum is σ = 194558400. Its totient is φ = 96728192.

The previous prime is 145505531. The next prime is 145505543.

145505541 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 145505541 - 2⁵ = 145505509 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 145505499 and 145505508.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (145505543) 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, 67641 + ... + 69758.

It is an arithmetic number, because the mean of its divisors is an integer number (24319800).

Almost surely, 2^145505541 is an apocalyptic number.

It is an amenable number.

145505541 is a deficient number, since it is larger than the sum of its proper divisors (49052859).

145505541 is a wasteful number, since it uses less digits than its factorization.

145505541 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 137755.

The product of its (nonzero) digits is 10000, while the sum is 30.

The square root of 145505541 is about 12062.5677614677. The cubic root of 145505541 is about 525.9686317176.

Adding to 145505541 its product of nonzero digits (10000), we get a palindrome (145515541).

The spelling of 145505541 in words is "one hundred forty-five million, five hundred five thousand, five hundred forty-one".