140304047 has 8 divisors (see below), whose sum is σ = 155971200. Its totient is φ = 125333280.

The previous prime is 140304019. The next prime is 140304089. The reversal of 140304047 is 740403041.

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 140304047 - 2⁸ = 140303791 is a prime.

It is a super-3 number, since 3×140304047³ (a number of 25 digits) contains 333 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (140304947) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 173672 + ... + 174477.

It is an arithmetic number, because the mean of its divisors is an integer number (19496400).

Almost surely, 2^140304047 is an apocalyptic number.

140304047 is a deficient number, since it is larger than the sum of its proper divisors (15667153).

140304047 is a wasteful number, since it uses less digits than its factorization.

140304047 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 348193.

The product of its (nonzero) digits is 1344, while the sum is 23.

The square root of 140304047 is about 11845.0009286618. Note that the first 3 decimals coincide. The cubic root of 140304047 is about 519.6250341688.

Adding to 140304047 its reverse (740403041), we get a palindrome (880707088).

The spelling of 140304047 in words is "one hundred forty million, three hundred four thousand, forty-seven".