140167993 has 8 divisors (see below), whose sum is σ = 162122688. Its totient is φ = 118695984.

The previous prime is 140167961. The next prime is 140168023. The reversal of 140167993 is 399761041.

140167993 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 140167993 - 2⁵ = 140167961 is a prime.

It is not an unprimeable number, because it can be changed into a prime (140167793) 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, 120046 + ... + 121207.

It is an arithmetic number, because the mean of its divisors is an integer number (20265336).

Almost surely, 2^140167993 is an apocalyptic number.

It is an amenable number.

140167993 is a deficient number, since it is larger than the sum of its proper divisors (21954695).

140167993 is an equidigital number, since it uses as much as digits as its factorization.

140167993 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 241343.

The product of its (nonzero) digits is 40824, while the sum is 40.

The square root of 140167993 is about 11839.2564378005. The cubic root of 140167993 is about 519.4570182774.

The spelling of 140167993 in words is "one hundred forty million, one hundred sixty-seven thousand, nine hundred ninety-three".