142424969 has 6 divisors (see below), whose sum is σ = 150315930. Its totient is φ = 134928576.

The previous prime is 142424957. The next prime is 142424977. The reversal of 142424969 is 969424241.

It can be written as a sum of positive squares in only one way, i.e., 140114569 + 2310400 = 11837^2 + 1520^2 .

It is not a de Polignac number, because 142424969 - 2¹⁶ = 142359433 is a prime.

It is a super-2 number, since 2×142424969² = 40569743589301922, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (142420969) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 196904 + ... + 197625.

It is an arithmetic number, because the mean of its divisors is an integer number (25052655).

Almost surely, 2^142424969 is an apocalyptic number.

142424969 is a gapful number since it is divisible by the number (19) formed by its first and last digit.

It is an amenable number.

142424969 is a deficient number, since it is larger than the sum of its proper divisors (7890961).

142424969 is an equidigital number, since it uses as much as digits as its factorization.

142424969 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 394567 (or 394548 counting only the distinct ones).

The product of its digits is 124416, while the sum is 41.

The square root of 142424969 is about 11934.1932697606. The cubic root of 142424969 is about 522.2302740086.

The spelling of 142424969 in words is "one hundred forty-two million, four hundred twenty-four thousand, nine hundred sixty-nine".