140633513 has 2 divisors, whose sum is σ = 140633514. Its totient is φ = 140633512.

The previous prime is 140633489. The next prime is 140633531. The reversal of 140633513 is 315336041.

Together with next prime (140633531) it forms an Ormiston pair, because they use the same digits, order apart.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 137053849 + 3579664 = 11707^2 + 1892^2 .

It is an emirp because it is prime and its reverse (315336041) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 140633513 - 2¹⁴ = 140617129 is a prime.

It is not a weakly prime, because it can be changed into another prime (140633533) 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 as a sum of consecutive naturals, namely, 70316756 + 70316757.

It is an arithmetic number, because the mean of its divisors is an integer number (70316757).

Almost surely, 2^140633513 is an apocalyptic number.

It is an amenable number.

140633513 is a deficient number, since it is larger than the sum of its proper divisors (1).

140633513 is an equidigital number, since it uses as much as digits as its factorization.

140633513 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3240, while the sum is 26.

The square root of 140633513 is about 11858.9001597956. The cubic root of 140633513 is about 520.0314490348.

Adding to 140633513 its reverse (315336041), we get a palindrome (455969554).

It can be divided in two parts, 14063 and 3513, that added together give a cube (17576 = 26³).

The spelling of 140633513 in words is "one hundred forty million, six hundred thirty-three thousand, five hundred thirteen".