140645541 has 8 divisors (see below), whose sum is σ = 188095264. Its totient is φ = 93479760.

The previous prime is 140645521. The next prime is 140645579. The reversal of 140645541 is 145546041.

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

It is not a de Polignac number, because 140645541 - 2⁵ = 140645509 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 140645499 and 140645508.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (140645501) 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, 69826 + ... + 71811.

It is an arithmetic number, because the mean of its divisors is an integer number (23511908).

Almost surely, 2^140645541 is an apocalyptic number.

It is an amenable number.

140645541 is a deficient number, since it is larger than the sum of its proper divisors (47449723).

140645541 is a wasteful number, since it uses less digits than its factorization.

140645541 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 141971.

The product of its (nonzero) digits is 9600, while the sum is 30.

The square root of 140645541 is about 11859.4072786122. The cubic root of 140645541 is about 520.0462742350.

The spelling of 140645541 in words is "one hundred forty million, six hundred forty-five thousand, five hundred forty-one".