1255131235 has 8 divisors (see below), whose sum is σ = 1506422736. Its totient is φ = 1003928160.

The previous prime is 1255131217. The next prime is 1255131247. The reversal of 1255131235 is 5321315521.

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

It is a de Polignac number, because none of the positive numbers 2^k-1255131235 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 14697 + ... + 52213.

It is an arithmetic number, because the mean of its divisors is an integer number (188302842).

Almost surely, 2^1255131235 is an apocalyptic number.

1255131235 is a deficient number, since it is larger than the sum of its proper divisors (251291501).

1255131235 is an equidigital number, since it uses as much as digits as its factorization.

1255131235 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44213.

The product of its digits is 4500, while the sum is 28.

The square root of 1255131235 is about 35427.8313617980. The cubic root of 1255131235 is about 1078.6893207935.

Adding to 1255131235 its reverse (5321315521), we get a palindrome (6576446756).

The spelling of 1255131235 in words is "one billion, two hundred fifty-five million, one hundred thirty-one thousand, two hundred thirty-five".