140303423 has 4 divisors (see below), whose sum is σ = 151096008. Its totient is φ = 129510840.

The previous prime is 140303369. The next prime is 140303437. The reversal of 140303423 is 324303041.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 324303041 = 953 ⋅340297.

It is a cyclic number.

It is not a de Polignac number, because 140303423 - 2⁸ = 140303167 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 140303395 and 140303404.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (140303623) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5396273 + ... + 5396298.

It is an arithmetic number, because the mean of its divisors is an integer number (37774002).

Almost surely, 2^140303423 is an apocalyptic number.

140303423 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

140303423 is a deficient number, since it is larger than the sum of its proper divisors (10792585).

140303423 is a wasteful number, since it uses less digits than its factorization.

140303423 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10792584.

The product of its (nonzero) digits is 864, while the sum is 20.

The square root of 140303423 is about 11844.9745884067. The cubic root of 140303423 is about 519.6242638263.

Adding to 140303423 its reverse (324303041), we get a palindrome (464606464).

The spelling of 140303423 in words is "one hundred forty million, three hundred three thousand, four hundred twenty-three".