1405012552241 has 4 divisors (see below), whose sum is σ = 1431522223092. Its totient is φ = 1378502881392.

The previous prime is 1405012552219. The next prime is 1405012552253. The reversal of 1405012552241 is 1422552105041.

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 497335248400 + 907677303841 = 705220^2 + 952721^2 .

It is a cyclic number.

It is not a de Polignac number, because 1405012552241 - 2²² = 1405008357937 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1405012552198 and 1405012552207.

It is not an unprimeable number, because it can be changed into a prime (1405012552211) 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, 13254835346 + ... + 13254835451.

It is an arithmetic number, because the mean of its divisors is an integer number (357880555773).

Almost surely, 2^{1405012552241} is an apocalyptic number.

It is an amenable number.

1405012552241 is a deficient number, since it is larger than the sum of its proper divisors (26509670851).

1405012552241 is an equidigital number, since it uses as much as digits as its factorization.

1405012552241 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26509670850.

The product of its (nonzero) digits is 16000, while the sum is 32.

Adding to 1405012552241 its reverse (1422552105041), we get a palindrome (2827564657282).

The spelling of 1405012552241 in words is "one trillion, four hundred five billion, twelve million, five hundred fifty-two thousand, two hundred forty-one".