1255145135 has 8 divisors (see below), whose sum is σ = 1515768576. Its totient is φ = 997719840.

The previous prime is 1255145131. The next prime is 1255145161. The reversal of 1255145135 is 5315415521.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1255145135 - 2² = 1255145131 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 (1255145131) 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, 798671 + ... + 800240.

It is an arithmetic number, because the mean of its divisors is an integer number (189471072).

Almost surely, 2^1255145135 is an apocalyptic number.

1255145135 is a deficient number, since it is larger than the sum of its proper divisors (260623441).

1255145135 is a wasteful number, since it uses less digits than its factorization.

1255145135 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1599073.

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

The square root of 1255145135 is about 35428.0275347076. The cubic root of 1255145135 is about 1078.6933027745.

The spelling of 1255145135 in words is "one billion, two hundred fifty-five million, one hundred forty-five thousand, one hundred thirty-five".