140580 has 72 divisors (see below), whose sum is σ = 471744. Its totient is φ = 33600.

The previous prime is 140557. The next prime is 140587. The reversal of 140580 is 85041.

140580 = T₂₄ + T₂₅ + ... + T₉₄.

140580 = 21² + 22² + ... + 75².

It is a Harshad number since it is a multiple of its sum of digits (18).

It is an Ulam number.

It is a plaindrome in base 7.

It is not an unprimeable number, because it can be changed into a prime (140587) by changing a digit.

140580 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 in 23 ways as a sum of consecutive naturals, for example, 1945 + ... + 2015.

It is an arithmetic number, because the mean of its divisors is an integer number (6552).

2¹⁴⁰⁵⁸⁰ is an apocalyptic number.

140580 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 140580, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (235872).

140580 is an abundant number, since it is smaller than the sum of its proper divisors (331164).

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

140580 is a wasteful number, since it uses less digits than its factorization.

140580 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 97 (or 92 counting only the distinct ones).

The product of its (nonzero) digits is 160, while the sum is 18.

The square root of 140580 is about 374.9399951992. The cubic root of 140580 is about 51.9965480943.

It can be divided in two parts, 1405 and 80, that added together give a triangular number (1485 = T₅₄).

The spelling of 140580 in words is "one hundred forty thousand, five hundred eighty".