120154243 has 4 divisors (see below), whose sum is σ = 131077368. Its totient is φ = 109231120.

The previous prime is 120154219. The next prime is 120154261. The reversal of 120154243 is 342451021.

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

It is a cyclic number.

It is not a de Polignac number, because 120154243 - 2⁵ = 120154211 is a prime.

It is a super-2 number, since 2×120154243² = 28874084221806098, which contains 22 as substring.

It is a Smith number, since the sum of its digits (22) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (120154213) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5461546 + ... + 5461567.

It is an arithmetic number, because the mean of its divisors is an integer number (32769342).

Almost surely, 2^120154243 is an apocalyptic number.

120154243 is a deficient number, since it is larger than the sum of its proper divisors (10923125).

120154243 is a wasteful number, since it uses less digits than its factorization.

120154243 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10923124.

The product of its (nonzero) digits is 960, while the sum is 22.

The square root of 120154243 is about 10961.4890867984. The cubic root of 120154243 is about 493.4536554681.

The spelling of 120154243 in words is "one hundred twenty million, one hundred fifty-four thousand, two hundred forty-three".