140019747 has 8 divisors (see below), whose sum is σ = 213363456. Its totient is φ = 80011272.

The previous prime is 140019727. The next prime is 140019751. The reversal of 140019747 is 747910041.

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

It is not a de Polignac number, because 140019747 - 2⁷ = 140019619 is a prime.

It is not an unprimeable number, because it can be changed into a prime (140019727) 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, 3333783 + ... + 3333824.

It is an arithmetic number, because the mean of its divisors is an integer number (26670432).

Almost surely, 2^140019747 is an apocalyptic number.

140019747 is a deficient number, since it is larger than the sum of its proper divisors (73343709).

140019747 is an equidigital number, since it uses as much as digits as its factorization.

140019747 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6667617.

The product of its (nonzero) digits is 7056, while the sum is 33.

The square root of 140019747 is about 11832.9939998295. The cubic root of 140019747 is about 519.2738224138.

Adding to 140019747 its reverse (747910041), we get a palindrome (887929788).

The spelling of 140019747 in words is "one hundred forty million, nineteen thousand, seven hundred forty-seven".