1405541413 has 4 divisors (see below), whose sum is σ = 1409155020. Its totient is φ = 1401927808.

The previous prime is 1405541411. The next prime is 1405541437. The reversal of 1405541413 is 3141455041.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 609003684 + 796537729 = 24678^2 + 28223^2 .

It is a cyclic number.

It is not a de Polignac number, because 1405541413 - 2¹ = 1405541411 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 (1405541411) 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, 1806220 + ... + 1806997.

It is an arithmetic number, because the mean of its divisors is an integer number (352288755).

Almost surely, 2^1405541413 is an apocalyptic number.

It is an amenable number.

1405541413 is a deficient number, since it is larger than the sum of its proper divisors (3613607).

1405541413 is an equidigital number, since it uses as much as digits as its factorization.

1405541413 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3613606.

The product of its (nonzero) digits is 4800, while the sum is 28.

The square root of 1405541413 is about 37490.5509828810. The cubic root of 1405541413 is about 1120.1629793119.

Adding to 1405541413 its reverse (3141455041), we get a palindrome (4546996454).

The spelling of 1405541413 in words is "one billion, four hundred five million, five hundred forty-one thousand, four hundred thirteen".