140940814 has 16 divisors (see below), whose sum is σ = 242337888. Its totient is φ = 60221952.

The previous prime is 140940809. The next prime is 140940817. The reversal of 140940814 is 418049041.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (140940817) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10219 + ... + 19654.

It is an arithmetic number, because the mean of its divisors is an integer number (15146118).

Almost surely, 2^140940814 is an apocalyptic number.

140940814 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

140940814 is a deficient number, since it is larger than the sum of its proper divisors (101397074).

140940814 is a wasteful number, since it uses less digits than its factorization.

140940814 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30219.

The product of its (nonzero) digits is 4608, while the sum is 31.

The square root of 140940814 is about 11871.8496452743. The cubic root of 140940814 is about 520.4099503927.

Adding to 140940814 its reverse (418049041), we get a palindrome (558989855).

The spelling of 140940814 in words is "one hundred forty million, nine hundred forty thousand, eight hundred fourteen".