140421550115 has 32 divisors (see below), whose sum is σ = 212616423936. Its totient is φ = 86480847360.

The previous prime is 140421550069. The next prime is 140421550117. The reversal of 140421550115 is 511055124041.

It is not a de Polignac number, because 140421550115 - 2⁸ = 140421549859 is a prime.

It is not an unprimeable number, because it can be changed into a prime (140421550117) 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, 2165222 + ... + 2229131.

It is an arithmetic number, because the mean of its divisors is an integer number (6644263248).

Almost surely, 2^140421550115 is an apocalyptic number.

140421550115 is a deficient number, since it is larger than the sum of its proper divisors (72194873821).

140421550115 is a wasteful number, since it uses less digits than its factorization.

140421550115 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4394459.

The product of its (nonzero) digits is 4000, while the sum is 29.

Adding to 140421550115 its reverse (511055124041), we get a palindrome (651476674156).

The spelling of 140421550115 in words is "one hundred forty billion, four hundred twenty-one million, five hundred fifty thousand, one hundred fifteen".