1406323643541 has 4 divisors (see below), whose sum is σ = 1875098191392. Its totient is φ = 937549095692.

The previous prime is 1406323643533. The next prime is 1406323643567. The reversal of 1406323643541 is 1453463236041.

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 1406323643541 - 2³ = 1406323643533 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 1406323643493 and 1406323643502.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1406323643341) 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, 234387273921 + ... + 234387273926.

It is an arithmetic number, because the mean of its divisors is an integer number (468774547848).

Almost surely, 2^{1406323643541} is an apocalyptic number.

It is an amenable number.

1406323643541 is a deficient number, since it is larger than the sum of its proper divisors (468774547851).

1406323643541 is an equidigital number, since it uses as much as digits as its factorization.

1406323643541 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 468774547850.

The product of its (nonzero) digits is 622080, while the sum is 42.

Adding to 1406323643541 its reverse (1453463236041), we get a palindrome (2859786879582).

The spelling of 1406323643541 in words is "one trillion, four hundred six billion, three hundred twenty-three million, six hundred forty-three thousand, five hundred forty-one".