140421106 has 16 divisors (see below), whose sum is σ = 242620416. Its totient is φ = 59705856.

The previous prime is 140421053. The next prime is 140421107. The reversal of 140421106 is 601124041.

It is not an unprimeable number, because it can be changed into a prime (140421107) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 37711 + ... + 41266.

It is an arithmetic number, because the mean of its divisors is an integer number (15163776).

Almost surely, 2^140421106 is an apocalyptic number.

140421106 is a deficient number, since it is larger than the sum of its proper divisors (102199310).

140421106 is a wasteful number, since it uses less digits than its factorization.

140421106 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 79113.

The product of its (nonzero) digits is 192, while the sum is 19.

The square root of 140421106 is about 11849.9411812886. The cubic root of 140421106 is about 519.7695058349.

Adding to 140421106 its reverse (601124041), we get a palindrome (741545147).

The spelling of 140421106 in words is "one hundred forty million, four hundred twenty-one thousand, one hundred six".