140871589 has 8 divisors (see below), whose sum is σ = 145983960. Its totient is φ = 135776256.

The previous prime is 140871581. The next prime is 140871607. The reversal of 140871589 is 985178041.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 5963364 + 134908225 = 2442^2 + 11615^2 .

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 140871589 - 2³ = 140871581 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (140871581) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13957 + ... + 21829.

It is an arithmetic number, because the mean of its divisors is an integer number (18247995).

Almost surely, 2^140871589 is an apocalyptic number.

It is an amenable number.

140871589 is a deficient number, since it is larger than the sum of its proper divisors (5112371).

140871589 is an equidigital number, since it uses as much as digits as its factorization.

140871589 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8519.

The product of its (nonzero) digits is 80640, while the sum is 43.

The square root of 140871589 is about 11868.9337768816. The cubic root of 140871589 is about 520.3247342950.

The spelling of 140871589 in words is "one hundred forty million, eight hundred seventy-one thousand, five hundred eighty-nine".