140025142 has 4 divisors (see below), whose sum is σ = 210037716. Its totient is φ = 70012570.

The previous prime is 140025139. The next prime is 140025143. The reversal of 140025142 is 241520041.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (140025143) 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 as a sum of consecutive naturals, namely, 35006284 + ... + 35006287.

It is an arithmetic number, because the mean of its divisors is an integer number (52509429).

Almost surely, 2^140025142 is an apocalyptic number.

140025142 is a deficient number, since it is larger than the sum of its proper divisors (70012574).

140025142 is an equidigital number, since it uses as much as digits as its factorization.

140025142 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 70012573.

The product of its (nonzero) digits is 320, while the sum is 19.

The square root of 140025142 is about 11833.2219619172. The cubic root of 140025142 is about 519.2804915833.

Adding to 140025142 its reverse (241520041), we get a palindrome (381545183).

The spelling of 140025142 in words is "one hundred forty million, twenty-five thousand, one hundred forty-two".