140293489 has 8 divisors (see below), whose sum is σ = 162267840. Its totient is φ = 118802256.

The previous prime is 140293481. The next prime is 140293523. The reversal of 140293489 is 984392041.

140293489 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 140293489 - 2³ = 140293481 is a prime.

It is not an unprimeable number, because it can be changed into a prime (140293481) 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, 120154 + ... + 121315.

It is an arithmetic number, because the mean of its divisors is an integer number (20283480).

Almost surely, 2^140293489 is an apocalyptic number.

It is an amenable number.

140293489 is a deficient number, since it is larger than the sum of its proper divisors (21974351).

140293489 is an equidigital number, since it uses as much as digits as its factorization.

140293489 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 241559.

The product of its (nonzero) digits is 62208, while the sum is 40.

The square root of 140293489 is about 11844.5552470323. Note that the first 3 decimals coincide. The cubic root of 140293489 is about 519.6119997651.

The spelling of 140293489 in words is "one hundred forty million, two hundred ninety-three thousand, four hundred eighty-nine".