140660269 has 8 divisors (see below), whose sum is σ = 144720320. Its totient is φ = 136658016.

The previous prime is 140660243. The next prime is 140660291. The reversal of 140660269 is 962066041.

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 140660269 - 2⁷ = 140660141 is a prime.

It is a super-2 number, since 2×140660269² = 39570622550304722, 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 (140660209) 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, 9489 + ... + 19270.

It is an arithmetic number, because the mean of its divisors is an integer number (18090040).

Almost surely, 2^140660269 is an apocalyptic number.

It is an amenable number.

140660269 is a deficient number, since it is larger than the sum of its proper divisors (4060051).

140660269 is an equidigital number, since it uses as much as digits as its factorization.

140660269 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28899.

The product of its (nonzero) digits is 15552, while the sum is 34.

The square root of 140660269 is about 11860.0282040137. The cubic root of 140660269 is about 520.0644261891.

The spelling of 140660269 in words is "one hundred forty million, six hundred sixty thousand, two hundred sixty-nine".