120145233 has 8 divisors (see below), whose sum is σ = 172516288. Its totient is φ = 73935504.

The previous prime is 120145229. The next prime is 120145237. The reversal of 120145233 is 332541021.

It is an interprime number because it is at equal distance from previous prime (120145229) and next prime (120145237).

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 120145233 - 2² = 120145229 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (120145237) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1540285 + ... + 1540362.

It is an arithmetic number, because the mean of its divisors is an integer number (21564536).

Almost surely, 2^120145233 is an apocalyptic number.

120145233 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

It is an amenable number.

120145233 is a deficient number, since it is larger than the sum of its proper divisors (52371055).

120145233 is a wasteful number, since it uses less digits than its factorization.

120145233 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3080663.

The product of its (nonzero) digits is 720, while the sum is 21.

The square root of 120145233 is about 10961.0780947861. The cubic root of 120145233 is about 493.4413209652.

Adding to 120145233 its reverse (332541021), we get a palindrome (452686254).

The spelling of 120145233 in words is "one hundred twenty million, one hundred forty-five thousand, two hundred thirty-three".