140997 has 8 divisors (see below), whose sum is σ = 192544. Its totient is φ = 91728.

The previous prime is 140989. The next prime is 141023. The reversal of 140997 is 799041.

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

It is not a de Polignac number, because 140997 - 2³ = 140989 is a prime.

It is a super-7 number, since 7×140997⁷ (a number of 37 digits) contains 7777777 as substring.

It is a Duffinian number.

140997 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (140977) 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, 418 + ... + 675.

It is an arithmetic number, because the mean of its divisors is an integer number (24068).

2¹⁴⁰⁹⁹⁷ is an apocalyptic number.

It is an amenable number.

140997 is a deficient number, since it is larger than the sum of its proper divisors (51547).

140997 is a wasteful number, since it uses less digits than its factorization.

140997 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1139.

The product of its (nonzero) digits is 2268, while the sum is 30.

The square root of 140997 is about 375.4956724118. The cubic root of 140997 is about 52.0479094946.

The spelling of 140997 in words is "one hundred forty thousand, nine hundred ninety-seven".