120172249 has 2 divisors, whose sum is σ = 120172250. Its totient is φ = 120172248.

The previous prime is 120172237. The next prime is 120172277. The reversal of 120172249 is 942271021.

It is an a-pointer prime, because the next prime (120172277) can be obtained adding 120172249 to its sum of digits (28).

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 63441225 + 56731024 = 7965^2 + 7532^2 .

It is a cyclic number.

It is not a de Polignac number, because 120172249 - 2⁷ = 120172121 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (120172049) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60086124 + 60086125.

It is an arithmetic number, because the mean of its divisors is an integer number (60086125).

Almost surely, 2^120172249 is an apocalyptic number.

It is an amenable number.

120172249 is a deficient number, since it is larger than the sum of its proper divisors (1).

120172249 is an equidigital number, since it uses as much as digits as its factorization.

120172249 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2016, while the sum is 28.

The square root of 120172249 is about 10962.3103860455. The cubic root of 120172249 is about 493.4783034608.

The spelling of 120172249 in words is "one hundred twenty million, one hundred seventy-two thousand, two hundred forty-nine".