140837685 has 32 divisors (see below), whose sum is σ = 234094080. Its totient is φ = 72249408.

The previous prime is 140837677. The next prime is 140837687. The reversal of 140837685 is 586738041.

It is not a de Polignac number, because 140837685 - 2³ = 140837677 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (140837687) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 41586 + ... + 44844.

It is an arithmetic number, because the mean of its divisors is an integer number (7315440).

Almost surely, 2^140837685 is an apocalyptic number.

140837685 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

140837685 is a deficient number, since it is larger than the sum of its proper divisors (93256395).

140837685 is a wasteful number, since it uses less digits than its factorization.

140837685 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3377.

The product of its (nonzero) digits is 161280, while the sum is 42.

The square root of 140837685 is about 11867.5054244774. The cubic root of 140837685 is about 520.2829882260.

It can be divided in two parts, 1408 and 37685, that added together give a palindrome (39093).

The spelling of 140837685 in words is "one hundred forty million, eight hundred thirty-seven thousand, six hundred eighty-five".