140940837 has 8 divisors (see below), whose sum is σ = 208801280. Its totient is φ = 93960540.

The previous prime is 140940823. The next prime is 140940847. The reversal of 140940837 is 738049041.

It is a happy number.

It is not a de Polignac number, because 140940837 - 2⁶ = 140940773 is a prime.

It is a Duffinian number.

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, 2609989 + ... + 2610042.

It is an arithmetic number, because the mean of its divisors is an integer number (26100160).

Almost surely, 2^140940837 is an apocalyptic number.

It is an amenable number.

140940837 is a deficient number, since it is larger than the sum of its proper divisors (67860443).

140940837 is an equidigital number, since it uses as much as digits as its factorization.

140940837 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5220040 (or 5220034 counting only the distinct ones).

The product of its (nonzero) digits is 24192, while the sum is 36.

The square root of 140940837 is about 11871.8506139523. The cubic root of 140940837 is about 520.4099787011.

Adding to 140940837 its reverse (738049041), we get a palindrome (878989878).

The spelling of 140940837 in words is "one hundred forty million, nine hundred forty thousand, eight hundred thirty-seven".