140038733 has 2 divisors, whose sum is σ = 140038734. Its totient is φ = 140038732.

The previous prime is 140038727. The next prime is 140038757. The reversal of 140038733 is 337830041.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 138603529 + 1435204 = 11773^2 + 1198^2 .

It is an emirp because it is prime and its reverse (337830041) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 140038733 - 2¹² = 140034637 is a prime.

It is a super-2 number, since 2×140038733² = 39221693480490578, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 140038696 and 140038705.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (140038763) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 70019366 + 70019367.

It is an arithmetic number, because the mean of its divisors is an integer number (70019367).

Almost surely, 2^140038733 is an apocalyptic number.

It is an amenable number.

140038733 is a deficient number, since it is larger than the sum of its proper divisors (1).

140038733 is an equidigital number, since it uses as much as digits as its factorization.

140038733 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 6048, while the sum is 29.

The square root of 140038733 is about 11833.7962209935. The cubic root of 140038733 is about 519.2972916921.

Adding to 140038733 its reverse (337830041), we get a palindrome (477868774).

The spelling of 140038733 in words is "one hundred forty million, thirty-eight thousand, seven hundred thirty-three".