120949569 has 24 divisors (see below), whose sum is σ = 194218752. Its totient is φ = 72027360.

The previous prime is 120949567. The next prime is 120949579. The reversal of 120949569 is 965949021.

It is not a de Polignac number, because 120949569 - 2¹ = 120949567 is a prime.

It is a super-2 number, since 2×120949569² = 29257596482571522, which contains 22 as substring.

120949569 is a modest number, since divided by 49569 gives 1209 as remainder.

It is not an unprimeable number, because it can be changed into a prime (120949567) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 13047 + ... + 20300.

It is an arithmetic number, because the mean of its divisors is an integer number (8092448).

Almost surely, 2^120949569 is an apocalyptic number.

It is an amenable number.

120949569 is a deficient number, since it is larger than the sum of its proper divisors (73269183).

120949569 is a wasteful number, since it uses less digits than its factorization.

120949569 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33397 (or 33394 counting only the distinct ones).

The product of its (nonzero) digits is 174960, while the sum is 45.

The square root of 120949569 is about 10997.7074429174. The cubic root of 120949569 is about 494.5400195872.

The spelling of 120949569 in words is "one hundred twenty million, nine hundred forty-nine thousand, five hundred sixty-nine".