120309249 has 8 divisors (see below), whose sum is σ = 160471872. Its totient is φ = 80176400.

The previous prime is 120309229. The next prime is 120309269. The reversal of 120309249 is 942903021.

It is an interprime number because it is at equal distance from previous prime (120309229) and next prime (120309269).

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 120309249 - 2¹⁶ = 120243713 is a prime.

It is not an unprimeable number, because it can be changed into a prime (120309229) 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, 4924 + ... + 16274.

It is an arithmetic number, because the mean of its divisors is an integer number (20058984).

Almost surely, 2^120309249 is an apocalyptic number.

It is an amenable number.

120309249 is a deficient number, since it is larger than the sum of its proper divisors (40162623).

120309249 is a wasteful number, since it uses less digits than its factorization.

120309249 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14887.

The product of its (nonzero) digits is 3888, while the sum is 30.

The square root of 120309249 is about 10968.5572889054. The cubic root of 120309249 is about 493.6657589763.

The spelling of 120309249 in words is "one hundred twenty million, three hundred nine thousand, two hundred forty-nine".