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BaseRepresentation
bin100011100010000101
321101122102
4203202011
514124131
63041445
71144214
oct434205
9241572
10145541
119a390
1270285
1351326
143b07b
152d1cb
hex23885

145541 has 8 divisors (see below), whose sum is σ = 161568. Its totient is φ = 130000.

The previous prime is 145531. The next prime is 145543.

It can be divided in two parts, 145 and 541, that added together give a palindrome (686).

145541 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 145541 - 26 = 145477 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (145543) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1046 + ... + 1176.

It is an arithmetic number, because the mean of its divisors is an integer number (20196).

2145541 is an apocalyptic number.

145541 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

145541 is a deficient number, since it is larger than the sum of its proper divisors (16027).

145541 is a wasteful number, since it uses less digits than its factorization.

145541 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 243.

The product of its digits is 400, while the sum is 20.

The square root of 145541 is about 381.4983617265. The cubic root of 145541 is about 52.6011353589.

The spelling of 145541 in words is "one hundred forty-five thousand, five hundred forty-one".

Divisors: 1 11 101 131 1111 1441 13231 145541