140406223523 has 8 divisors (see below), whose sum is σ = 149800266000. Its totient is φ = 131138275840.

The previous prime is 140406223493. The next prime is 140406223547. The reversal of 140406223523 is 325322604041.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 140406223523 - 2⁶ = 140406223459 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 140406223523.

It is not an unprimeable number, because it can be changed into a prime (140406223423) 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, 31521398 + ... + 31525851.

It is an arithmetic number, because the mean of its divisors is an integer number (18725033250).

Almost surely, 2^140406223523 is an apocalyptic number.

140406223523 is a deficient number, since it is larger than the sum of its proper divisors (9394042477).

140406223523 is a wasteful number, since it uses less digits than its factorization.

140406223523 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 63047397.

The product of its (nonzero) digits is 34560, while the sum is 32.

Adding to 140406223523 its reverse (325322604041), we get a palindrome (465728827564).

The spelling of 140406223523 in words is "one hundred forty billion, four hundred six million, two hundred twenty-three thousand, five hundred twenty-three".