140002 has 4 divisors (see below), whose sum is σ = 210006. Its totient is φ = 70000.
The previous prime is 139999. The next prime is 140009. The reversal of 140002 is 200041.
It is a semiprime because it is the product of two primes.
It can be written as a sum of positive squares in only one way, i.e., 95481 + 44521 = 309^2 + 211^2 .
It is not an unprimeable number, because it can be changed into a prime (140009) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (7) of ones.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 34999 + ... + 35002.
2140002 is an apocalyptic number.
140002 is a deficient number, since it is larger than the sum of its proper divisors (70004).
140002 is an equidigital number, since it uses as much as digits as its factorization.
140002 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 70003.
The product of its (nonzero) digits is 8, while the sum is 7.
The square root of 140002 is about 374.1684112803. The cubic root of 140002 is about 51.9251882790.
Adding to 140002 its reverse (200041), we get a palindrome (340043).
The spelling of 140002 in words is "one hundred forty thousand, two", and thus it is an iban number.
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