140431011 has 12 divisors (see below), whose sum is σ = 217811592. Its totient is φ = 80246208.

The previous prime is 140431007. The next prime is 140431013. The reversal of 140431011 is 110134041.

It is not a de Polignac number, because 140431011 - 2² = 140431007 is a prime.

It is not an unprimeable number, because it can be changed into a prime (140431013) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 477510 + ... + 477803.

It is an arithmetic number, because the mean of its divisors is an integer number (18150966).

Almost surely, 2^140431011 is an apocalyptic number.

140431011 is a deficient number, since it is larger than the sum of its proper divisors (77380581).

140431011 is an equidigital number, since it uses as much as digits as its factorization.

140431011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 955330 (or 955323 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 15.

The square root of 140431011 is about 11850.3591084827. The cubic root of 140431011 is about 519.7817266851.

Adding to 140431011 its reverse (110134041), we get a palindrome (250565052).

The spelling of 140431011 in words is "one hundred forty million, four hundred thirty-one thousand, eleven".