1555141243 has 8 divisors (see below), whose sum is σ = 1560900096. Its totient is φ = 1549392000.

The previous prime is 1555141229. The next prime is 1555141267. The reversal of 1555141243 is 3421415551.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1555141243 - 2⁹ = 1555140731 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1555141223) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 496723 + ... + 499843.

It is an arithmetic number, because the mean of its divisors is an integer number (195112512).

Almost surely, 2^1555141243 is an apocalyptic number.

1555141243 is a deficient number, since it is larger than the sum of its proper divisors (5758853).

1555141243 is a wasteful number, since it uses less digits than its factorization.

1555141243 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4805.

The product of its digits is 12000, while the sum is 31.

The square root of 1555141243 is about 39435.2791672634. The cubic root of 1555141243 is about 1158.5726704840.

Adding to 1555141243 its reverse (3421415551), we get a palindrome (4976556794).

The spelling of 1555141243 in words is "one billion, five hundred fifty-five million, one hundred forty-one thousand, two hundred forty-three".