140307538 has 16 divisors (see below), whose sum is σ = 246121920. Its totient is φ = 58733136.

The previous prime is 140307529. The next prime is 140307547. The reversal of 140307538 is 835703041.

It is an interprime number because it is at equal distance from previous prime (140307529) and next prime (140307547).

It is an unprimeable number.

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 in 7 ways as a sum of consecutive naturals, for example, 115933 + ... + 117136.

It is an arithmetic number, because the mean of its divisors is an integer number (15382620).

Almost surely, 2^140307538 is an apocalyptic number.

140307538 is a deficient number, since it is larger than the sum of its proper divisors (105814382).

140307538 is a wasteful number, since it uses less digits than its factorization.

140307538 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 233121.

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

The square root of 140307538 is about 11845.1482894897. The cubic root of 140307538 is about 519.6293438471.

The spelling of 140307538 in words is "one hundred forty million, three hundred seven thousand, five hundred thirty-eight".