140797589 has 8 divisors (see below), whose sum is σ = 142548120. Its totient is φ = 139055616.

The previous prime is 140797583. The next prime is 140797603. The reversal of 140797589 is 985797041.

It can be written as a sum of positive squares in 4 ways, for example, as 6932689 + 133864900 = 2633^2 + 11570^2 .

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-140797589 is a prime.

It is a super-2 number, since 2×140797589² = 39647922136425842, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (140797583) 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, 34817 + ... + 38649.

It is an arithmetic number, because the mean of its divisors is an integer number (17818515).

Almost surely, 2^140797589 is an apocalyptic number.

It is an amenable number.

140797589 is a deficient number, since it is larger than the sum of its proper divisors (1750531).

140797589 is a wasteful number, since it uses less digits than its factorization.

140797589 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4279.

The product of its (nonzero) digits is 635040, while the sum is 50.

The square root of 140797589 is about 11865.8159854264. The cubic root of 140797589 is about 520.2336092861.

The spelling of 140797589 in words is "one hundred forty million, seven hundred ninety-seven thousand, five hundred eighty-nine".