120669543 has 12 divisors (see below), whose sum is σ = 179011768. Its totient is φ = 78271920.

The previous prime is 120669533. The next prime is 120669557. The reversal of 120669543 is 345966021.

It is a happy number.

It is not a de Polignac number, because 120669543 - 2¹³ = 120661351 is a prime.

It is a super-2 number, since 2×120669543² = 29122277215657698, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 120669498 and 120669507.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (120669503) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 180853 + ... + 181518.

Almost surely, 2^120669543 is an apocalyptic number.

120669543 is a deficient number, since it is larger than the sum of its proper divisors (58342225).

120669543 is a wasteful number, since it uses less digits than its factorization.

120669543 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 362414 (or 362411 counting only the distinct ones).

The product of its (nonzero) digits is 38880, while the sum is 36.

The square root of 120669543 is about 10984.9689576257. The cubic root of 120669543 is about 494.1580667990.

It can be divided in two parts, 12066 and 9543, that added together give a square (21609 = 147²).

The spelling of 120669543 in words is "one hundred twenty million, six hundred sixty-nine thousand, five hundred forty-three".