69140 has 12 divisors (see below), whose sum is σ = 145236. Its totient is φ = 27648.

The previous prime is 69127. The next prime is 69143. The reversal of 69140 is 4196.

It can be written as a sum of positive squares in 2 ways, for example, as 9604 + 59536 = 98^2 + 244^2 .

It is a Harshad number since it is a multiple of its sum of digits (20), and also a Moran number because the ratio is a prime number: 3457 = 69140 / (6 + 9 + 1 + 4 + 0).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (69143) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1709 + ... + 1748.

It is an arithmetic number, because the mean of its divisors is an integer number (12103).

2⁶⁹¹⁴⁰ is an apocalyptic number.

It is an amenable number.

69140 is an abundant number, since it is smaller than the sum of its proper divisors (76096).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

It is a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (72618).

69140 is a wasteful number, since it uses less digits than its factorization.

69140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3466 (or 3464 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 20.

The square root of 69140 is about 262.9448611401. The cubic root of 69140 is about 41.0433806162.

The spelling of 69140 in words is "sixty-nine thousand, one hundred forty".