140665042 has 16 divisors (see below), whose sum is σ = 248919552. Its totient is φ = 58340160.

The previous prime is 140665013. The next prime is 140665067. The reversal of 140665042 is 240566041.

It is a self number, because there is not a number n which added to its sum of digits gives 140665042.

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, 161623 + ... + 162490.

It is an arithmetic number, because the mean of its divisors is an integer number (15557472).

Almost surely, 2^140665042 is an apocalyptic number.

140665042 is a deficient number, since it is larger than the sum of its proper divisors (108254510).

140665042 is a wasteful number, since it uses less digits than its factorization.

140665042 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 324153.

The product of its (nonzero) digits is 5760, while the sum is 28.

The square root of 140665042 is about 11860.2294244251. The cubic root of 140665042 is about 520.0703085406.

Subtracting 140665042 from its reverse (240566041), we obtain a palindrome (99900999).

The spelling of 140665042 in words is "one hundred forty million, six hundred sixty-five thousand, forty-two".