140390169 has 8 divisors (see below), whose sum is σ = 189751392. Its totient is φ = 92311200.

The previous prime is 140390153. The next prime is 140390171. The reversal of 140390169 is 961093041.

140390169 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 not a de Polignac number, because 140390169 - 2⁴ = 140390153 is a prime.

It is a super-2 number, since 2×140390169² = 39418799103697122, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (140390669) 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, 320307 + ... + 320744.

It is an arithmetic number, because the mean of its divisors is an integer number (23718924).

Almost surely, 2^140390169 is an apocalyptic number.

It is an amenable number.

140390169 is a deficient number, since it is larger than the sum of its proper divisors (49361223).

140390169 is an equidigital number, since it uses as much as digits as its factorization.

140390169 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 641127.

The product of its (nonzero) digits is 5832, while the sum is 33.

The square root of 140390169 is about 11848.6357442534. The cubic root of 140390169 is about 519.7313318720.

The spelling of 140390169 in words is "one hundred forty million, three hundred ninety thousand, one hundred sixty-nine".