120005545 has 8 divisors (see below), whose sum is σ = 157098240. Its totient is φ = 87276720.

The previous prime is 120005537. The next prime is 120005551. The reversal of 120005545 is 545500021.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 120005545 - 2³ = 120005537 is a prime.

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, 1090905 + ... + 1091014.

It is an arithmetic number, because the mean of its divisors is an integer number (19637280).

Almost surely, 2^120005545 is an apocalyptic number.

It is an amenable number.

120005545 is a deficient number, since it is larger than the sum of its proper divisors (37092695).

120005545 is a wasteful number, since it uses less digits than its factorization.

120005545 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2181935.

The product of its (nonzero) digits is 1000, while the sum is 22.

The square root of 120005545 is about 10954.7042406447. The cubic root of 120005545 is about 493.2500120524.

Adding to 120005545 its reverse (545500021), we get a palindrome (665505566).

The spelling of 120005545 in words is "one hundred twenty million, five thousand, five hundred forty-five".