1556114141 has 2 divisors, whose sum is σ = 1556114142. Its totient is φ = 1556114140.

The previous prime is 1556114111. The next prime is 1556114173. The reversal of 1556114141 is 1414116551.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1555908025 + 206116 = 39445^2 + 454^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1556114141 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1556114111) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 778057070 + 778057071.

It is an arithmetic number, because the mean of its divisors is an integer number (778057071).

Almost surely, 2^1556114141 is an apocalyptic number.

It is an amenable number.

1556114141 is a deficient number, since it is larger than the sum of its proper divisors (1).

1556114141 is an equidigital number, since it uses as much as digits as its factorization.

1556114141 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2400, while the sum is 29.

The square root of 1556114141 is about 39447.6126147071. The cubic root of 1556114141 is about 1158.8142215472.

The spelling of 1556114141 in words is "one billion, five hundred fifty-six million, one hundred fourteen thousand, one hundred forty-one".