140531455 has 8 divisors (see below), whose sum is σ = 169295472. Its totient is φ = 111986688.

The previous prime is 140531453. The next prime is 140531471. The reversal of 140531455 is 554135041.

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

It is a cyclic number.

It is not a de Polignac number, because 140531455 - 2¹ = 140531453 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (140531453) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 53397 + ... + 55966.

It is an arithmetic number, because the mean of its divisors is an integer number (21161934).

Almost surely, 2^140531455 is an apocalyptic number.

140531455 is a deficient number, since it is larger than the sum of its proper divisors (28764017).

140531455 is a wasteful number, since it uses less digits than its factorization.

140531455 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 109625.

The product of its (nonzero) digits is 6000, while the sum is 28.

The square root of 140531455 is about 11854.5963659671. The cubic root of 140531455 is about 519.9056226649.

Adding to 140531455 its reverse (554135041), we get a palindrome (694666496).

The spelling of 140531455 in words is "one hundred forty million, five hundred thirty-one thousand, four hundred fifty-five".