1255410243 has 12 divisors (see below), whose sum is σ = 1815568560. Its totient is φ = 835925616.

The previous prime is 1255410239. The next prime is 1255410257. The reversal of 1255410243 is 3420145521.

1255410243 is a `hidden beast` number, since 1 + 2 + 5 + 5 + 410 + 243 = 666.

It is not a de Polignac number, because 1255410243 - 2² = 1255410239 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1255410263) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 76671 + ... + 91592.

It is an arithmetic number, because the mean of its divisors is an integer number (151297380).

Almost surely, 2^1255410243 is an apocalyptic number.

1255410243 is a deficient number, since it is larger than the sum of its proper divisors (560158317).

1255410243 is a wasteful number, since it uses less digits than its factorization.

1255410243 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 169098 (or 169095 counting only the distinct ones).

The product of its (nonzero) digits is 4800, while the sum is 27.

The square root of 1255410243 is about 35431.7688381486. The cubic root of 1255410243 is about 1078.7692435520.

Adding to 1255410243 its reverse (3420145521), we get a palindrome (4675555764).

The spelling of 1255410243 in words is "one billion, two hundred fifty-five million, four hundred ten thousand, two hundred forty-three".