142496005 has 4 divisors (see below), whose sum is σ = 170995212. Its totient is φ = 113996800.

The previous prime is 142495999. The next prime is 142496021. The reversal of 142496005 is 500694241.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 500694241 = 14087 ⋅35543.

It can be written as a sum of positive squares in 2 ways, for example, as 27941796 + 114554209 = 5286^2 + 10703^2 .

It is not a de Polignac number, because 142496005 - 2⁵ = 142495973 is a prime.

It is a super-2 number, since 2×142496005² = 40610222881920050, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 14249596 + ... + 14249605.

It is an arithmetic number, because the mean of its divisors is an integer number (42748803).

Almost surely, 2^142496005 is an apocalyptic number.

It is an amenable number.

142496005 is a deficient number, since it is larger than the sum of its proper divisors (28499207).

142496005 is an equidigital number, since it uses as much as digits as its factorization.

142496005 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28499206.

The product of its (nonzero) digits is 8640, while the sum is 31.

The square root of 142496005 is about 11937.1690530042. The cubic root of 142496005 is about 522.3170822515.

The spelling of 142496005 in words is "one hundred forty-two million, four hundred ninety-six thousand, five".