120725149 has 4 divisors (see below), whose sum is σ = 123003036. Its totient is φ = 118447264.

The previous prime is 120725131. The next prime is 120725201. The reversal of 120725149 is 941527021.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 941527021 = 29 ⋅32466449.

It can be written as a sum of positive squares in 2 ways, for example, as 77757124 + 42968025 = 8818^2 + 6555^2 .

It is a cyclic number.

It is not a de Polignac number, because 120725149 - 2¹⁷ = 120594077 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 120725149.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (120725249) 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, 1138864 + ... + 1138969.

It is an arithmetic number, because the mean of its divisors is an integer number (30750759).

Almost surely, 2^120725149 is an apocalyptic number.

It is an amenable number.

120725149 is a deficient number, since it is larger than the sum of its proper divisors (2277887).

120725149 is an equidigital number, since it uses as much as digits as its factorization.

120725149 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2277886.

The product of its (nonzero) digits is 5040, while the sum is 31.

The square root of 120725149 is about 10987.4996700796. The cubic root of 120725149 is about 494.2339598347.

The spelling of 120725149 in words is "one hundred twenty million, seven hundred twenty-five thousand, one hundred forty-nine".