142950169 has 4 divisors (see below), whose sum is σ = 145647396. Its totient is φ = 140252944.

The previous prime is 142950131. The next prime is 142950173. The reversal of 142950169 is 961059241.

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 88736400 + 54213769 = 9420^2 + 7363^2 .

It is a cyclic number.

It is not a de Polignac number, because 142950169 - 2¹⁷ = 142819097 is a prime.

It is a super-2 number, since 2×142950169² = 40869501634257122, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (142956169) 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, 1348534 + ... + 1348639.

It is an arithmetic number, because the mean of its divisors is an integer number (36411849).

Almost surely, 2^142950169 is an apocalyptic number.

It is an amenable number.

142950169 is a deficient number, since it is larger than the sum of its proper divisors (2697227).

142950169 is an equidigital number, since it uses as much as digits as its factorization.

142950169 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2697226.

The product of its (nonzero) digits is 19440, while the sum is 37.

The square root of 142950169 is about 11956.1770227778. The cubic root of 142950169 is about 522.8714043189.

The spelling of 142950169 in words is "one hundred forty-two million, nine hundred fifty thousand, one hundred sixty-nine".