140165139 has 32 divisors (see below), whose sum is σ = 199443456. Its totient is φ = 87436800.

The previous prime is 140165093. The next prime is 140165141. The reversal of 140165139 is 931561041.

It is not a de Polignac number, because 140165139 - 2⁸ = 140164883 is a prime.

It is not an unprimeable number, because it can be changed into a prime (140165339) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 349339 + ... + 349739.

It is an arithmetic number, because the mean of its divisors is an integer number (6232608).

Almost surely, 2^140165139 is an apocalyptic number.

140165139 is a deficient number, since it is larger than the sum of its proper divisors (59278317).

140165139 is a wasteful number, since it uses less digits than its factorization.

140165139 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 555.

The product of its (nonzero) digits is 3240, while the sum is 30.

The square root of 140165139 is about 11839.1359059688. The cubic root of 140165139 is about 519.4534926499.

The spelling of 140165139 in words is "one hundred forty million, one hundred sixty-five thousand, one hundred thirty-nine".