1255514135 has 4 divisors (see below), whose sum is σ = 1506616968. Its totient is φ = 1004411304.

The previous prime is 1255514131. The next prime is 1255514137. The reversal of 1255514135 is 5314155521.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 5314155521 = 701 ⋅7580821.

It is a cyclic number.

It is not a de Polignac number, because 1255514135 - 2² = 1255514131 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1255514131) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 125551409 + ... + 125551418.

It is an arithmetic number, because the mean of its divisors is an integer number (376654242).

Almost surely, 2^1255514135 is an apocalyptic number.

1255514135 is a deficient number, since it is larger than the sum of its proper divisors (251102833).

1255514135 is an equidigital number, since it uses as much as digits as its factorization.

1255514135 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 251102832.

The product of its digits is 15000, while the sum is 32.

The square root of 1255514135 is about 35433.2348932468. The cubic root of 1255514135 is about 1078.7990007312.

Adding to 1255514135 its reverse (5314155521), we get a palindrome (6569669656).

The spelling of 1255514135 in words is "one billion, two hundred fifty-five million, five hundred fourteen thousand, one hundred thirty-five".