140416538 has 4 divisors (see below), whose sum is σ = 210624810. Its totient is φ = 70208268.

The previous prime is 140416531. The next prime is 140416547. The reversal of 140416538 is 835614041.

140416538 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 835614041 = 5503 ⋅151847.

It can be written as a sum of positive squares in only one way, i.e., 129572689 + 10843849 = 11383^2 + 3293^2 .

It is not an unprimeable number, because it can be changed into a prime (140416531) by changing a digit.

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 as a sum of consecutive naturals, namely, 35104133 + ... + 35104136.

Almost surely, 2^140416538 is an apocalyptic number.

140416538 is a deficient number, since it is larger than the sum of its proper divisors (70208272).

140416538 is an equidigital number, since it uses as much as digits as its factorization.

140416538 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 70208271.

The product of its (nonzero) digits is 11520, while the sum is 32.

The square root of 140416538 is about 11849.7484361483. The cubic root of 140416538 is about 519.7638696146.

The spelling of 140416538 in words is "one hundred forty million, four hundred sixteen thousand, five hundred thirty-eight".