120243545 has 8 divisors (see below), whose sum is σ = 144429696. Its totient is φ = 96103216.

The previous prime is 120243527. The next prime is 120243551. The reversal of 120243545 is 545342021.

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 120243545 - 2⁸ = 120243289 is a prime.

It is a super-2 number, since 2×120243545² = 28917020228334050, which contains 22 as substring.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5387 + ... + 16416.

It is an arithmetic number, because the mean of its divisors is an integer number (18053712).

Almost surely, 2^120243545 is an apocalyptic number.

It is an amenable number.

120243545 is a deficient number, since it is larger than the sum of its proper divisors (24186151).

120243545 is a wasteful number, since it uses less digits than its factorization.

120243545 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22911.

The product of its (nonzero) digits is 4800, while the sum is 26.

The square root of 120243545 is about 10965.5617731150. The cubic root of 120243545 is about 493.5758747218.

Adding to 120243545 its reverse (545342021), we get a palindrome (665585566).

The spelling of 120243545 in words is "one hundred twenty million, two hundred forty-three thousand, five hundred forty-five".