145530541 has 8 divisors (see below), whose sum is σ = 157633560. Its totient is φ = 133557312.

The previous prime is 145530493. The next prime is 145530551. The reversal of 145530541 is 145035541.

It can be written as a sum of positive squares in 4 ways, for example, as 52504516 + 93026025 = 7246^2 + 9645^2 .

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 145530541 - 2⁹ = 145530029 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 (145530551) 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, 30106 + ... + 34603.

It is an arithmetic number, because the mean of its divisors is an integer number (19704195).

Almost surely, 2^145530541 is an apocalyptic number.

It is an amenable number.

145530541 is a deficient number, since it is larger than the sum of its proper divisors (12103019).

145530541 is a wasteful number, since it uses less digits than its factorization.

145530541 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 64895.

The product of its (nonzero) digits is 6000, while the sum is 28.

The square root of 145530541 is about 12063.6039805690. The cubic root of 145530541 is about 525.9987530512.

The spelling of 145530541 in words is "one hundred forty-five million, five hundred thirty thousand, five hundred forty-one".