140481 has 24 divisors (see below), whose sum is σ = 234080. Its totient is φ = 83160.

The previous prime is 140477. The next prime is 140521. The reversal of 140481 is 184041.

It is not a de Polignac number, because 140481 - 2² = 140477 is a prime.

It is a super-2 number, since 2×140481² = 39469822722, which contains 22 as substring.

It is a Curzon number.

It is a nialpdrome in base 11.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 140481.

It is not an unprimeable number, because it can be changed into a prime (140401) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 3246 + ... + 3288.

2¹⁴⁰⁴⁸¹ is an apocalyptic number.

140481 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

140481 is a deficient number, since it is larger than the sum of its proper divisors (93599).

140481 is a wasteful number, since it uses less digits than its factorization.

140481 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 74 (or 57 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 18.

The square root of 140481 is about 374.8079508228. The cubic root of 140481 is about 51.9843394655.

It can be divided in two parts, 1404 and 81, that added together give a triangular number (1485 = T₅₄).

The spelling of 140481 in words is "one hundred forty thousand, four hundred eighty-one".