140103231 has 16 divisors (see below), whose sum is σ = 190689408. Its totient is φ = 91476000.

The previous prime is 140103209. The next prime is 140103233. The reversal of 140103231 is 132301041.

It is not a de Polignac number, because 140103231 - 2⁹ = 140102719 is a prime.

It is a super-2 number, since 2×140103231² = 39257830673278722, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 140103231.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (140103233) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 34456 + ... + 38306.

It is an arithmetic number, because the mean of its divisors is an integer number (11918088).

Almost surely, 2^140103231 is an apocalyptic number.

140103231 is a deficient number, since it is larger than the sum of its proper divisors (50586177).

140103231 is a wasteful number, since it uses less digits than its factorization.

140103231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4102.

The product of its (nonzero) digits is 72, while the sum is 15.

The square root of 140103231 is about 11836.5210682869. The cubic root of 140103231 is about 519.3770041527.

Adding to 140103231 its reverse (132301041), we get a palindrome (272404272).

The spelling of 140103231 in words is "one hundred forty million, one hundred three thousand, two hundred thirty-one".