1405153441 has 4 divisors (see below), whose sum is σ = 1437831472. Its totient is φ = 1372475412.

The previous prime is 1405153439. The next prime is 1405153457. The reversal of 1405153441 is 1443515041.

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 1405153441 - 2¹ = 1405153439 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1405153481) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 16338951 + ... + 16339036.

It is an arithmetic number, because the mean of its divisors is an integer number (359457868).

Almost surely, 2^1405153441 is an apocalyptic number.

It is an amenable number.

1405153441 is a deficient number, since it is larger than the sum of its proper divisors (32678031).

1405153441 is an equidigital number, since it uses as much as digits as its factorization.

1405153441 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32678030.

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

The square root of 1405153441 is about 37485.3763619895. The cubic root of 1405153441 is about 1120.0599035243.

Adding to 1405153441 its reverse (1443515041), we get a palindrome (2848668482).

It can be divided in two parts, 1405 and 153441, that added together give a triangular number (154846 = T₅₅₆).

The spelling of 1405153441 in words is "one billion, four hundred five million, one hundred fifty-three thousand, four hundred forty-one".