120202545 has 16 divisors (see below), whose sum is σ = 194193792. Its totient is φ = 63484800.

The previous prime is 120202543. The next prime is 120202549. The reversal of 120202545 is 545202021.

It is a happy number.

It is not a de Polignac number, because 120202545 - 2¹ = 120202543 is a prime.

It is not an unprimeable number, because it can be changed into a prime (120202543) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 37356 + ... + 40445.

It is an arithmetic number, because the mean of its divisors is an integer number (12137112).

Almost surely, 2^120202545 is an apocalyptic number.

120202545 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

120202545 is a deficient number, since it is larger than the sum of its proper divisors (73991247).

120202545 is a wasteful number, since it uses less digits than its factorization.

120202545 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 77912.

The product of its (nonzero) digits is 800, while the sum is 21.

The square root of 120202545 is about 10963.6921244625. The cubic root of 120202545 is about 493.5197693916.

Adding to 120202545 its reverse (545202021), we get a palindrome (665404566).

It can be divided in two parts, 1 and 20202545, that added together give a triangular number (20202546 = T₆₃₅₆).

The spelling of 120202545 in words is "one hundred twenty million, two hundred two thousand, five hundred forty-five".