145245541 has 8 divisors (see below), whose sum is σ = 167095424. Its totient is φ = 123670800.

The previous prime is 145245533. The next prime is 145245563. The reversal of 145245541 is 145542541.

It is a happy number.

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 145245541 - 2³ = 145245533 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 (145245511) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 67650 + ... + 69763.

It is an arithmetic number, because the mean of its divisors is an integer number (20886928).

Almost surely, 2^145245541 is an apocalyptic number.

It is an amenable number.

145245541 is a deficient number, since it is larger than the sum of its proper divisors (21849883).

145245541 is a wasteful number, since it uses less digits than its factorization.

145245541 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 137571.

The product of its digits is 16000, while the sum is 31.

The square root of 145245541 is about 12051.7858012827. The cubic root of 145245541 is about 525.6551651261.

The spelling of 145245541 in words is "one hundred forty-five million, two hundred forty-five thousand, five hundred forty-one".