140421210345 has 96 divisors (see below), whose sum is σ = 274398179328. Its totient is φ = 65911532544.

The previous prime is 140421210343. The next prime is 140421210359. The reversal of 140421210345 is 543012124041.

140421210345 is a `hidden beast` number, since 1 + 404 + 2 + 1 + 210 + 3 + 45 = 666.

It is not a de Polignac number, because 140421210345 - 2¹ = 140421210343 is a prime.

It is not an unprimeable number, because it can be changed into a prime (140421210343) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 4194744 + ... + 4228086.

It is an arithmetic number, because the mean of its divisors is an integer number (2858314368).

Almost surely, 2^140421210345 is an apocalyptic number.

140421210345 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

140421210345 is a deficient number, since it is larger than the sum of its proper divisors (133976968983).

140421210345 is a wasteful number, since it uses less digits than its factorization.

140421210345 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33703 (or 33700 counting only the distinct ones).

The product of its (nonzero) digits is 3840, while the sum is 27.

Adding to 140421210345 its reverse (543012124041), we get a palindrome (683433334386).

The spelling of 140421210345 in words is "one hundred forty billion, four hundred twenty-one million, two hundred ten thousand, three hundred forty-five".