140134406 has 4 divisors (see below), whose sum is σ = 210201612. Its totient is φ = 70067202.

The previous prime is 140134399. The next prime is 140134411. The reversal of 140134406 is 604431041.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 35033600 + ... + 35033603.

It is an arithmetic number, because the mean of its divisors is an integer number (52550403).

Almost surely, 2^140134406 is an apocalyptic number.

140134406 is a deficient number, since it is larger than the sum of its proper divisors (70067206).

140134406 is an equidigital number, since it uses as much as digits as its factorization.

140134406 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 70067205.

The product of its (nonzero) digits is 1152, while the sum is 23.

The square root of 140134406 is about 11837.8378938048. The cubic root of 140134406 is about 519.4155242667.

Adding to 140134406 its reverse (604431041), we get a palindrome (744565447).

The spelling of 140134406 in words is "one hundred forty million, one hundred thirty-four thousand, four hundred six".