140533441 has 8 divisors (see below), whose sum is σ = 149133960. Its totient is φ = 131970048.

The previous prime is 140533433. The next prime is 140533453. The reversal of 140533441 is 144335041.

It can be written as a sum of positive squares in 4 ways, for example, as 98010000 + 42523441 = 9900^2 + 6521^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 140533441 - 2³ = 140533433 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (140533741) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1276 + ... + 16813.

It is an arithmetic number, because the mean of its divisors is an integer number (18641745).

Almost surely, 2^140533441 is an apocalyptic number.

It is an amenable number.

140533441 is a deficient number, since it is larger than the sum of its proper divisors (8600519).

140533441 is a wasteful number, since it uses less digits than its factorization.

140533441 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18563.

The product of its (nonzero) digits is 2880, while the sum is 25.

The square root of 140533441 is about 11854.6801306488. The cubic root of 140533441 is about 519.9080717672.

Adding to 140533441 its reverse (144335041), we get a palindrome (284868482).

The spelling of 140533441 in words is "one hundred forty million, five hundred thirty-three thousand, four hundred forty-one".