140409037 has 2 divisors, whose sum is σ = 140409038. Its totient is φ = 140409036.

The previous prime is 140409023. The next prime is 140409047. The reversal of 140409037 is 730904041.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 71419401 + 68989636 = 8451^2 + 8306^2 .

It is a cyclic number.

It is not a de Polignac number, because 140409037 - 2²³ = 132020429 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 140408996 and 140409014.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (140409047) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 70204518 + 70204519.

It is an arithmetic number, because the mean of its divisors is an integer number (70204519).

Almost surely, 2^140409037 is an apocalyptic number.

It is an amenable number.

140409037 is a deficient number, since it is larger than the sum of its proper divisors (1).

140409037 is an equidigital number, since it uses as much as digits as its factorization.

140409037 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3024, while the sum is 28.

The square root of 140409037 is about 11849.4319273120. The cubic root of 140409037 is about 519.7546142513.

The spelling of 140409037 in words is "one hundred forty million, four hundred nine thousand, thirty-seven".