140065031 has 2 divisors, whose sum is σ = 140065032. Its totient is φ = 140065030.

The previous prime is 140065021. The next prime is 140065039. The reversal of 140065031 is 130560041.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 140065031 - 2¹⁰ = 140064007 is a prime.

It is a super-2 number, since 2×140065031² = 39236425818061922, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 140064994 and 140065012.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (140065039) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 70032515 + 70032516.

It is an arithmetic number, because the mean of its divisors is an integer number (70032516).

Almost surely, 2^140065031 is an apocalyptic number.

140065031 is a deficient number, since it is larger than the sum of its proper divisors (1).

140065031 is an equidigital number, since it uses as much as digits as its factorization.

140065031 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 360, while the sum is 20.

The square root of 140065031 is about 11834.9073084668. The cubic root of 140065031 is about 519.3297960931.

The spelling of 140065031 in words is "one hundred forty million, sixty-five thousand, thirty-one".