120542069 has 2 divisors, whose sum is σ = 120542070. Its totient is φ = 120542068.

The previous prime is 120542017. The next prime is 120542083. The reversal of 120542069 is 960245021.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 72420100 + 48121969 = 8510^2 + 6937^2 .

It is a cyclic number.

It is not a de Polignac number, because 120542069 - 2²⁴ = 103764853 is a prime.

It is a super-2 number, since 2×120542069² = 29060780797601522, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (120542089) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60271034 + 60271035.

It is an arithmetic number, because the mean of its divisors is an integer number (60271035).

Almost surely, 2^120542069 is an apocalyptic number.

It is an amenable number.

120542069 is a deficient number, since it is larger than the sum of its proper divisors (1).

120542069 is an equidigital number, since it uses as much as digits as its factorization.

120542069 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4320, while the sum is 29.

The square root of 120542069 is about 10979.1652232763. The cubic root of 120542069 is about 493.9839977442.

The spelling of 120542069 in words is "one hundred twenty million, five hundred forty-two thousand, sixty-nine".