1401505441 has 4 divisors (see below), whose sum is σ = 1601720512. Its totient is φ = 1201290372.

The previous prime is 1401505421. The next prime is 1401505451. The reversal of 1401505441 is 1445051041.

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 1401505441 - 2⁵ = 1401505409 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1401505421) 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, 100107525 + ... + 100107538.

It is an arithmetic number, because the mean of its divisors is an integer number (400430128).

Almost surely, 2^1401505441 is an apocalyptic number.

It is an amenable number.

1401505441 is a deficient number, since it is larger than the sum of its proper divisors (200215071).

1401505441 is an equidigital number, since it uses as much as digits as its factorization.

1401505441 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 200215070.

The product of its (nonzero) digits is 1600, while the sum is 25.

The square root of 1401505441 is about 37436.6857641004. The cubic root of 1401505441 is about 1119.0897794402.

Adding to 1401505441 its reverse (1445051041), we get a palindrome (2846556482).

The spelling of 1401505441 in words is "one billion, four hundred one million, five hundred five thousand, four hundred forty-one".