140564 has 6 divisors (see below), whose sum is σ = 245994. Its totient is φ = 70280.

The previous prime is 140557. The next prime is 140587. The reversal of 140564 is 465041.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 115600 + 24964 = 340^2 + 158^2 .

It is a congruent number.

It is an unprimeable number.

140564 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 17567 + ... + 17574.

It is an arithmetic number, because the mean of its divisors is an integer number (40999).

2¹⁴⁰⁵⁶⁴ is an apocalyptic number.

It is an amenable number.

140564 is a deficient number, since it is larger than the sum of its proper divisors (105430).

140564 is a wasteful number, since it uses less digits than its factorization.

140564 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35145 (or 35143 counting only the distinct ones).

The product of its (nonzero) digits is 480, while the sum is 20.

The square root of 140564 is about 374.9186578446. The cubic root of 140564 is about 51.9945753710.

The spelling of 140564 in words is "one hundred forty thousand, five hundred sixty-four".