140041213 has 4 divisors (see below), whose sum is σ = 150813628. Its totient is φ = 129268800.

The previous prime is 140041207. The next prime is 140041217. The reversal of 140041213 is 312140041.

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

It can be written as a sum of positive squares in 2 ways, for example, as 71267364 + 68773849 = 8442^2 + 8293^2 .

It is a cyclic number.

It is not a de Polignac number, because 140041213 - 2⁹ = 140040701 is a prime.

It is a super-2 number, since 2×140041213² = 39223082677022738, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (140041217) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5386188 + ... + 5386213.

It is an arithmetic number, because the mean of its divisors is an integer number (37703407).

Almost surely, 2^140041213 is an apocalyptic number.

140041213 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

It is an amenable number.

140041213 is a deficient number, since it is larger than the sum of its proper divisors (10772415).

140041213 is a wasteful number, since it uses less digits than its factorization.

140041213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10772414.

The product of its (nonzero) digits is 96, while the sum is 16.

The square root of 140041213 is about 11833.9010051631. The cubic root of 140041213 is about 519.3003571527.

Adding to 140041213 its reverse (312140041), we get a palindrome (452181254).

The spelling of 140041213 in words is "one hundred forty million, forty-one thousand, two hundred thirteen".