140382854329 has 3 divisors (see below), whose sum is σ = 140383229007. Its totient is φ = 140382479652.

The previous prime is 140382854309. The next prime is 140382854389. The reversal of 140382854329 is 923458283041.

It is a happy number.

The square root of 140382854329 is 374677.

It is a perfect power (a square), and thus also a powerful number.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in only one way, i.e., 117597555625 + 22785298704 = 342925^2 + 150948^2 .

It is not a de Polignac number, because 140382854329 - 2⁹ = 140382853817 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (140382854309) by changing a digit.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 187339 + ... + 562015.

It is an arithmetic number, because the mean of its divisors is an integer number (46794409669).

Almost surely, 2^140382854329 is an apocalyptic number.

140382854329 is the 374677-th square number.

140382854329 is the 187339-th centered octagonal number.

It is an amenable number.

140382854329 is a deficient number, since it is larger than the sum of its proper divisors (374678).

140382854329 is an frugal number, since it uses more digits than its factorization.

140382854329 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 749354 (or 374677 counting only the distinct ones).

The product of its (nonzero) digits is 1658880, while the sum is 49.

Multiplying 140382854329 by its sum of digits (49), we get a square (6878759862121 = 2622739²).

The spelling of 140382854329 in words is "one hundred forty billion, three hundred eighty-two million, eight hundred fifty-four thousand, three hundred twenty-nine".