140223523405 has 16 divisors (see below), whose sum is σ = 192321851904. Its totient is φ = 96145620480.

The previous prime is 140223523373. The next prime is 140223523441. The reversal of 140223523405 is 504325322041.

It is not a de Polignac number, because 140223523405 - 2⁵ = 140223523373 is a prime.

It is a super-2 number, since 2×140223523405² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 305725 + ... + 611485.

It is an arithmetic number, because the mean of its divisors is an integer number (12020115744).

Almost surely, 2^140223523405 is an apocalyptic number.

It is an amenable number.

140223523405 is a deficient number, since it is larger than the sum of its proper divisors (52098328499).

140223523405 is a wasteful number, since it uses less digits than its factorization.

140223523405 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 318876.

The product of its (nonzero) digits is 28800, while the sum is 31.

Adding to 140223523405 its reverse (504325322041), we get a palindrome (644548845446).

The spelling of 140223523405 in words is "one hundred forty billion, two hundred twenty-three million, five hundred twenty-three thousand, four hundred five".