142169000 has 32 divisors (see below), whose sum is σ = 332677800. Its totient is φ = 56867200.

The previous prime is 142168993. The next prime is 142169009. The reversal of 142169000 is 961241.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 34880836 + 107288164 = 5906^2 + 10358^2 .

It is a super-2 number, since 2×142169000² = 40424049122000000, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (142169009) 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 7 ways as a sum of consecutive naturals, for example, 70085 + ... + 72084.

Almost surely, 2^142169000 is an apocalyptic number.

142169000 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

142169000 is an abundant number, since it is smaller than the sum of its proper divisors (190508800).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

142169000 is a wasteful number, since it uses less digits than its factorization.

142169000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 142190 (or 142176 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 23.

The square root of 142169000 is about 11923.4642616984. The cubic root of 142169000 is about 521.9172321710.

The spelling of 142169000 in words is "one hundred forty-two million, one hundred sixty-nine thousand".