140023142 has 16 divisors (see below), whose sum is σ = 240191520. Its totient is φ = 59971968.

The previous prime is 140023127. The next prime is 140023153. The reversal of 140023142 is 241320041.

It is a self number, because there is not a number n which added to its sum of digits gives 140023142.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 41918 + ... + 45134.

It is an arithmetic number, because the mean of its divisors is an integer number (15011970).

Almost surely, 2^140023142 is an apocalyptic number.

140023142 is a deficient number, since it is larger than the sum of its proper divisors (100168378).

140023142 is a wasteful number, since it uses less digits than its factorization.

140023142 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6335.

The product of its (nonzero) digits is 192, while the sum is 17.

The square root of 140023142 is about 11833.1374537778. The cubic root of 140023142 is about 519.2780192513.

Adding to 140023142 its reverse (241320041), we get a palindrome (381343183).

It can be divided in two parts, 1400 and 23142, that added together give a palindrome (24542).

The spelling of 140023142 in words is "one hundred forty million, twenty-three thousand, one hundred forty-two".