1255559141 has 2 divisors, whose sum is σ = 1255559142. Its totient is φ = 1255559140.

The previous prime is 1255559093. The next prime is 1255559161. The reversal of 1255559141 is 1419555521.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 904746241 + 350812900 = 30079^2 + 18730^2 .

It is a cyclic number.

It is not a de Polignac number, because 1255559141 - 2⁶ = 1255559077 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1255559095 and 1255559104.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1255559161) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 627779570 + 627779571.

It is an arithmetic number, because the mean of its divisors is an integer number (627779571).

Almost surely, 2^1255559141 is an apocalyptic number.

It is an amenable number.

1255559141 is a deficient number, since it is larger than the sum of its proper divisors (1).

1255559141 is an equidigital number, since it uses as much as digits as its factorization.

1255559141 is an evil number, because the sum of its binary digits is even.

The product of its digits is 45000, while the sum is 38.

The square root of 1255559141 is about 35433.8699692822. The cubic root of 1255559141 is about 1078.8118910276.

The spelling of 1255559141 in words is "one billion, two hundred fifty-five million, five hundred fifty-nine thousand, one hundred forty-one".