120212545 has 8 divisors (see below), whose sum is σ = 145174824. Its totient is φ = 95556864.

The previous prime is 120212537. The next prime is 120212557. The reversal of 120212545 is 545212021.

It can be written as a sum of positive squares in 4 ways, for example, as 34668544 + 85544001 = 5888^2 + 9249^2 .

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 120212545 - 2³ = 120212537 is a prime.

It is a Duffinian number.

It is an unprimeable number.

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, 75784 + ... + 77353.

It is an arithmetic number, because the mean of its divisors is an integer number (18146853).

Almost surely, 2^120212545 is an apocalyptic number.

It is an amenable number.

120212545 is a deficient number, since it is larger than the sum of its proper divisors (24962279).

120212545 is a wasteful number, since it uses less digits than its factorization.

120212545 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 153299.

The product of its (nonzero) digits is 800, while the sum is 22.

The square root of 120212545 is about 10964.1481657263. The cubic root of 120212545 is about 493.5334547947.

Adding to 120212545 its reverse (545212021), we get a palindrome (665424566).

The spelling of 120212545 in words is "one hundred twenty million, two hundred twelve thousand, five hundred forty-five".