1555411141 has 8 divisors (see below), whose sum is σ = 1647883224. Its totient is φ = 1463047680.

The previous prime is 1555411139. The next prime is 1555411147. The reversal of 1555411141 is 1411145551.

It can be written as a sum of positive squares in 4 ways, for example, as 255520225 + 1299890916 = 15985^2 + 36054^2 .

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 1555411141 - 2¹ = 1555411139 is a prime.

It is a super-3 number, since 3×1555411141³ (a number of 29 digits) contains 333 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1555411147) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3321 + ... + 55873.

It is an arithmetic number, because the mean of its divisors is an integer number (205985403).

Almost surely, 2^1555411141 is an apocalyptic number.

It is an amenable number.

1555411141 is a deficient number, since it is larger than the sum of its proper divisors (92472083).

1555411141 is a wasteful number, since it uses less digits than its factorization.

1555411141 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 54311.

The product of its digits is 2000, while the sum is 28.

The square root of 1555411141 is about 39438.7010561961. The cubic root of 1555411141 is about 1158.6396908399.

Adding to 1555411141 its reverse (1411145551), we get a palindrome (2966556692).

The spelling of 1555411141 in words is "one billion, five hundred fifty-five million, four hundred eleven thousand, one hundred forty-one".