403540141 has 4 divisors (see below), whose sum is σ = 404854912. Its totient is φ = 402225372.

The previous prime is 403540103. The next prime is 403540187. The reversal of 403540141 is 141045304.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 403540141 - 2⁷ = 403540013 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 (403543141) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 656925 + ... + 657538.

It is an arithmetic number, because the mean of its divisors is an integer number (101213728).

Almost surely, 2^403540141 is an apocalyptic number.

It is an amenable number.

403540141 is a deficient number, since it is larger than the sum of its proper divisors (1314771).

403540141 is a wasteful number, since it uses less digits than its factorization.

403540141 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1314770.

The product of its (nonzero) digits is 960, while the sum is 22.

The square root of 403540141 is about 20088.3085649340. The cubic root of 403540141 is about 738.9735836643.

Adding to 403540141 its reverse (141045304), we get a palindrome (544585445).

The spelling of 403540141 in words is "four hundred three million, five hundred forty thousand, one hundred forty-one".