120247545 has 64 divisors (see below), whose sum is σ = 224446464. Its totient is φ = 54328320.

The previous prime is 120247507. The next prime is 120247577. The reversal of 120247545 is 545742021.

It is not a de Polignac number, because 120247545 - 2⁹ = 120247033 is a prime.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 457084 + ... + 457346.

It is an arithmetic number, because the mean of its divisors is an integer number (3506976).

Almost surely, 2^120247545 is an apocalyptic number.

120247545 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

120247545 is a deficient number, since it is larger than the sum of its proper divisors (104198919).

120247545 is a wasteful number, since it uses less digits than its factorization.

120247545 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 462.

The product of its (nonzero) digits is 11200, while the sum is 30.

The square root of 120247545 is about 10965.7441607946. The cubic root of 120247545 is about 493.5813477296.

Adding to 120247545 its reverse (545742021), we get a palindrome (665989566).

The spelling of 120247545 in words is "one hundred twenty million, two hundred forty-seven thousand, five hundred forty-five".