140146537 has 2 divisors, whose sum is σ = 140146538. Its totient is φ = 140146536.

The previous prime is 140146519. The next prime is 140146577. The reversal of 140146537 is 735641041.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 93141801 + 47004736 = 9651^2 + 6856^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-140146537 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 140146499 and 140146508.

It is not a weakly prime, because it can be changed into another prime (140146507) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 70073268 + 70073269.

It is an arithmetic number, because the mean of its divisors is an integer number (70073269).

Almost surely, 2^140146537 is an apocalyptic number.

It is an amenable number.

140146537 is a deficient number, since it is larger than the sum of its proper divisors (1).

140146537 is an equidigital number, since it uses as much as digits as its factorization.

140146537 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 10080, while the sum is 31.

The square root of 140146537 is about 11838.3502651341. The cubic root of 140146537 is about 519.4305118967.

Adding to 140146537 its reverse (735641041), we get a palindrome (875787578).

The spelling of 140146537 in words is "one hundred forty million, one hundred forty-six thousand, five hundred thirty-seven".