142375969 has 4 divisors (see below), whose sum is σ = 150751044. Its totient is φ = 134000896.

The previous prime is 142375939. The next prime is 142375997. The reversal of 142375969 is 969573241.

It is a happy number.

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 82901025 + 59474944 = 9105^2 + 7712^2 .

It is a cyclic number.

It is not a de Polignac number, because 142375969 - 2⁷ = 142375841 is a prime.

It is a super-2 number, since 2×142375969² = 40541833097377922, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (142375939) 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 3 ways as a sum of consecutive naturals, for example, 4187512 + ... + 4187545.

It is an arithmetic number, because the mean of its divisors is an integer number (37687761).

Almost surely, 2^142375969 is an apocalyptic number.

It is an amenable number.

142375969 is a deficient number, since it is larger than the sum of its proper divisors (8375075).

142375969 is an equidigital number, since it uses as much as digits as its factorization.

142375969 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8375074.

The product of its digits is 408240, while the sum is 46.

The square root of 142375969 is about 11932.1401684694. The cubic root of 142375969 is about 522.1703776324.

It can be divided in two parts, 1423759 and 69, that added together give a triangular number (1423828 = T₁₆₈₇).

The spelling of 142375969 in words is "one hundred forty-two million, three hundred seventy-five thousand, nine hundred sixty-nine".