140245733 has 8 divisors (see below), whose sum is σ = 148599000. Its totient is φ = 131904000.

The previous prime is 140245723. The next prime is 140245739. The reversal of 140245733 is 337542041.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 15856324 + 124389409 = 3982^2 + 11153^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 140245733 - 2⁸ = 140245477 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 140245696 and 140245705.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (140245739) 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 7 ways as a sum of consecutive naturals, for example, 45233 + ... + 48233.

It is an arithmetic number, because the mean of its divisors is an integer number (18574875).

Almost surely, 2^140245733 is an apocalyptic number.

It is an amenable number.

140245733 is a deficient number, since it is larger than the sum of its proper divisors (8353267).

140245733 is a wasteful number, since it uses less digits than its factorization.

140245733 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5767.

The product of its (nonzero) digits is 10080, while the sum is 29.

The square root of 140245733 is about 11842.5391280755. The cubic root of 140245733 is about 519.5530343135.

Adding to 140245733 its reverse (337542041), we get a palindrome (477787774).

The spelling of 140245733 in words is "one hundred forty million, two hundred forty-five thousand, seven hundred thirty-three".