140041831 has 2 divisors, whose sum is σ = 140041832. Its totient is φ = 140041830.

The previous prime is 140041817. The next prime is 140041843. The reversal of 140041831 is 138140041.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 140041831 - 2⁷ = 140041703 is a prime.

It is a super-2 number, since 2×140041831² = 39223428859665122, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (140041931) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 70020915 + 70020916.

It is an arithmetic number, because the mean of its divisors is an integer number (70020916).

Almost surely, 2^140041831 is an apocalyptic number.

140041831 is a deficient number, since it is larger than the sum of its proper divisors (1).

140041831 is an equidigital number, since it uses as much as digits as its factorization.

140041831 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 384, while the sum is 22.

The square root of 140041831 is about 11833.9271165577. The cubic root of 140041831 is about 519.3011210401.

Adding to 140041831 its reverse (138140041), we get a palindrome (278181872).

The spelling of 140041831 in words is "one hundred forty million, forty-one thousand, eight hundred thirty-one".