142052969 has 4 divisors (see below), whose sum is σ = 150409044. Its totient is φ = 133696896.

The previous prime is 142052959. The next prime is 142052993. The reversal of 142052969 is 969250241.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 125731369 + 16321600 = 11213^2 + 4040^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-142052969 is a prime.

It is a super-2 number, since 2×142052969² = 40358092003429922, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (142052909) 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, 4178012 + ... + 4178045.

It is an arithmetic number, because the mean of its divisors is an integer number (37602261).

Almost surely, 2^142052969 is an apocalyptic number.

It is an amenable number.

142052969 is a deficient number, since it is larger than the sum of its proper divisors (8356075).

142052969 is an equidigital number, since it uses as much as digits as its factorization.

142052969 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8356074.

The product of its (nonzero) digits is 38880, while the sum is 38.

The square root of 142052969 is about 11918.5976104574. The cubic root of 142052969 is about 521.7752062236.

The spelling of 142052969 in words is "one hundred forty-two million, fifty-two thousand, nine hundred sixty-nine".