120712145 has 4 divisors (see below), whose sum is σ = 144854580. Its totient is φ = 96569712.

The previous prime is 120712133. The next prime is 120712153. The reversal of 120712145 is 541217021.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 59105344 + 61606801 = 7688^2 + 7849^2 .

It is a cyclic number.

It is not a de Polignac number, because 120712145 - 2¹⁶ = 120646609 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 120712145.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12071210 + ... + 12071219.

It is an arithmetic number, because the mean of its divisors is an integer number (36213645).

Almost surely, 2^120712145 is an apocalyptic number.

It is an amenable number.

120712145 is a deficient number, since it is larger than the sum of its proper divisors (24142435).

120712145 is an equidigital number, since it uses as much as digits as its factorization.

120712145 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24142434.

The product of its (nonzero) digits is 560, while the sum is 23.

The square root of 120712145 is about 10986.9078907580. The cubic root of 120712145 is about 494.2162136036.

Adding to 120712145 its reverse (541217021), we get a palindrome (661929166).

The spelling of 120712145 in words is "one hundred twenty million, seven hundred twelve thousand, one hundred forty-five".