140756537 has 2 divisors, whose sum is σ = 140756538. Its totient is φ = 140756536.

The previous prime is 140756519. The next prime is 140756563. The reversal of 140756537 is 735657041.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 128618281 + 12138256 = 11341^2 + 3484^2 .

It is a cyclic number.

It is not a de Polignac number, because 140756537 - 2⁸ = 140756281 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 140756537.

It is not a weakly prime, because it can be changed into another prime (140756507) 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, 70378268 + 70378269.

It is an arithmetic number, because the mean of its divisors is an integer number (70378269).

Almost surely, 2^140756537 is an apocalyptic number.

It is an amenable number.

140756537 is a deficient number, since it is larger than the sum of its proper divisors (1).

140756537 is an equidigital number, since it uses as much as digits as its factorization.

140756537 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 88200, while the sum is 38.

The square root of 140756537 is about 11864.0860162087. The cubic root of 140756537 is about 520.1830433017.

The spelling of 140756537 in words is "one hundred forty million, seven hundred fifty-six thousand, five hundred thirty-seven".