142025005 has 4 divisors (see below), whose sum is σ = 170430012. Its totient is φ = 113620000.

The previous prime is 142025003. The next prime is 142025027. The reversal of 142025005 is 500520241.

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 108222409 + 33802596 = 10403^2 + 5814^2 .

It is not a de Polignac number, because 142025005 - 2¹ = 142025003 is a prime.

It is a super-2 number, since 2×142025005² = 40342204090500050, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (142025003) 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, 14202496 + ... + 14202505.

It is an arithmetic number, because the mean of its divisors is an integer number (42607503).

Almost surely, 2^142025005 is an apocalyptic number.

It is an amenable number.

142025005 is a deficient number, since it is larger than the sum of its proper divisors (28405007).

142025005 is an equidigital number, since it uses as much as digits as its factorization.

142025005 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28405006.

The product of its (nonzero) digits is 400, while the sum is 19.

The square root of 142025005 is about 11917.4244281220. The cubic root of 142025005 is about 521.7409657579.

Adding to 142025005 its reverse (500520241), we get a palindrome (642545246).

The spelling of 142025005 in words is "one hundred forty-two million, twenty-five thousand, five".