140240541 has 16 divisors (see below), whose sum is σ = 218913408. Its totient is φ = 78182400.

The previous prime is 140240537. The next prime is 140240561. The reversal of 140240541 is 145042041.

It is a happy number.

It is not a de Polignac number, because 140240541 - 2² = 140240537 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (140240561) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 80580 + ... + 82301.

It is an arithmetic number, because the mean of its divisors is an integer number (13682088).

Almost surely, 2^140240541 is an apocalyptic number.

It is an amenable number.

140240541 is a deficient number, since it is larger than the sum of its proper divisors (78672867).

140240541 is a wasteful number, since it uses less digits than its factorization.

140240541 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 162932.

The product of its (nonzero) digits is 640, while the sum is 21.

The square root of 140240541 is about 11842.3199163002. The cubic root of 140240541 is about 519.5466228228.

Adding to 140240541 its reverse (145042041), we get a palindrome (285282582).

The spelling of 140240541 in words is "one hundred forty million, two hundred forty thousand, five hundred forty-one".