120043145 has 16 divisors (see below), whose sum is σ = 147335760. Its totient is φ = 93859584.

The previous prime is 120043127. The next prime is 120043153. The reversal of 120043145 is 541340021.

It can be written as a sum of positive squares in 8 ways, for example, as 26708224 + 93334921 = 5168^2 + 9661^2 .

It is a cyclic number.

It is not a de Polignac number, because 120043145 - 2¹⁰ = 120042121 is a prime.

It is a super-2 number, since 2×120043145² = 28820713322982050, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 83291 + ... + 84719.

It is an arithmetic number, because the mean of its divisors is an integer number (9208485).

Almost surely, 2^120043145 is an apocalyptic number.

It is an amenable number.

120043145 is a deficient number, since it is larger than the sum of its proper divisors (27292615).

120043145 is a wasteful number, since it uses less digits than its factorization.

120043145 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1804.

The product of its (nonzero) digits is 480, while the sum is 20.

The square root of 120043145 is about 10956.4202639366. The cubic root of 120043145 is about 493.3015215162.

Adding to 120043145 its reverse (541340021), we get a palindrome (661383166).

The spelling of 120043145 in words is "one hundred twenty million, forty-three thousand, one hundred forty-five".