140501237 has 2 divisors, whose sum is σ = 140501238. Its totient is φ = 140501236.

The previous prime is 140501213. The next prime is 140501279. The reversal of 140501237 is 732105041.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 138627076 + 1874161 = 11774^2 + 1369^2 .

It is a cyclic number.

It is not a de Polignac number, because 140501237 - 2⁸ = 140500981 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (140551237) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 70250618 + 70250619.

It is an arithmetic number, because the mean of its divisors is an integer number (70250619).

Almost surely, 2^140501237 is an apocalyptic number.

It is an amenable number.

140501237 is a deficient number, since it is larger than the sum of its proper divisors (1).

140501237 is an equidigital number, since it uses as much as digits as its factorization.

140501237 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 840, while the sum is 23.

The square root of 140501237 is about 11853.3217707105. The cubic root of 140501237 is about 519.8683554821.

Adding to 140501237 its reverse (732105041), we get a palindrome (872606278).

The spelling of 140501237 in words is "one hundred forty million, five hundred one thousand, two hundred thirty-seven".