1555941241 has 4 divisors (see below), whose sum is σ = 1556141184. Its totient is φ = 1555741300.

The previous prime is 1555941209. The next prime is 1555941253. The reversal of 1555941241 is 1421495551.

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, and also an emirpimes, since its reverse is a distinct semiprime: 1421495551 = 7 ⋅203070793.

It is a cyclic number.

It is not a de Polignac number, because 1555941241 - 2⁵ = 1555941209 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1555941241.

It is not an unprimeable number, because it can be changed into a prime (1555941281) 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, 87805 + ... + 104026.

It is an arithmetic number, because the mean of its divisors is an integer number (389035296).

Almost surely, 2^1555941241 is an apocalyptic number.

It is an amenable number.

1555941241 is a deficient number, since it is larger than the sum of its proper divisors (199943).

1555941241 is an equidigital number, since it uses as much as digits as its factorization.

1555941241 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 199942.

The product of its digits is 36000, while the sum is 37.

The square root of 1555941241 is about 39445.4210397100. The cubic root of 1555941241 is about 1158.7713013023.

The spelling of 1555941241 in words is "one billion, five hundred fifty-five million, nine hundred forty-one thousand, two hundred forty-one".