140841007 has 4 divisors (see below), whose sum is σ = 140901696. Its totient is φ = 140780320.

The previous prime is 140840989. The next prime is 140841031. The reversal of 140841007 is 700148041.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-140841007 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 (140841047) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 26719 + ... + 31552.

It is an arithmetic number, because the mean of its divisors is an integer number (35225424).

Almost surely, 2^140841007 is an apocalyptic number.

140841007 is a deficient number, since it is larger than the sum of its proper divisors (60689).

140841007 is an equidigital number, since it uses as much as digits as its factorization.

140841007 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 60688.

The product of its (nonzero) digits is 896, while the sum is 25.

The square root of 140841007 is about 11867.6453856694. The cubic root of 140841007 is about 520.2870789078.

Adding to 140841007 its reverse (700148041), we get a palindrome (840989048).

The spelling of 140841007 in words is "one hundred forty million, eight hundred forty-one thousand, seven".