140134407 has 16 divisors (see below), whose sum is σ = 214617600. Its totient is φ = 79672032.

The previous prime is 140134399. The next prime is 140134411. The reversal of 140134407 is 704431041.

It is not a de Polignac number, because 140134407 - 2³ = 140134399 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (140134427) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 12588 + ... + 20945.

It is an arithmetic number, because the mean of its divisors is an integer number (13413600).

Almost surely, 2^140134407 is an apocalyptic number.

140134407 is a deficient number, since it is larger than the sum of its proper divisors (74483193).

140134407 is a wasteful number, since it uses less digits than its factorization.

140134407 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33742.

The product of its (nonzero) digits is 1344, while the sum is 24.

The square root of 140134407 is about 11837.8379360422. The cubic root of 140134407 is about 519.4155255022.

Adding to 140134407 its reverse (704431041), we get a palindrome (844565448).

The spelling of 140134407 in words is "one hundred forty million, one hundred thirty-four thousand, four hundred seven".