140226613 has 4 divisors (see below), whose sum is σ = 140250348. Its totient is φ = 140202880.

The previous prime is 140226563. The next prime is 140226643. The reversal of 140226613 is 316622041.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 316622041 = 229 ⋅1382629.

It can be written as a sum of positive squares in 2 ways, for example, as 42276004 + 97950609 = 6502^2 + 9897^2 .

It is a cyclic number.

It is not a de Polignac number, because 140226613 - 2²¹ = 138129461 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 (140226643) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4773 + ... + 17413.

It is an arithmetic number, because the mean of its divisors is an integer number (35062587).

Almost surely, 2^140226613 is an apocalyptic number.

It is an amenable number.

140226613 is a deficient number, since it is larger than the sum of its proper divisors (23735).

140226613 is a wasteful number, since it uses less digits than its factorization.

140226613 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23734.

The product of its (nonzero) digits is 1728, while the sum is 25.

The square root of 140226613 is about 11841.7318412469. The cubic root of 140226613 is about 519.5294226492.

Adding to 140226613 its reverse (316622041), we get a palindrome (456848654).

The spelling of 140226613 in words is "one hundred forty million, two hundred twenty-six thousand, six hundred thirteen".