1255203045 has 24 divisors (see below), whose sum is σ = 2200138200. Its totient is φ = 661917696.

The previous prime is 1255203031. The next prime is 1255203071. The reversal of 1255203045 is 5403025521.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 122611329 + 1132591716 = 11073^2 + 33654^2 .

It is not a de Polignac number, because 1255203045 - 2⁴ = 1255203029 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 152700 + ... + 160709.

It is an arithmetic number, because the mean of its divisors is an integer number (91672425).

Almost surely, 2^1255203045 is an apocalyptic number.

1255203045 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1255203045 is a deficient number, since it is larger than the sum of its proper divisors (944935155).

1255203045 is a wasteful number, since it uses less digits than its factorization.

1255203045 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 313509 (or 313506 counting only the distinct ones).

The product of its (nonzero) digits is 6000, while the sum is 27.

The square root of 1255203045 is about 35428.8448160535. The cubic root of 1255203045 is about 1078.7098921358.

Adding to 1255203045 its reverse (5403025521), we get a palindrome (6658228566).

The spelling of 1255203045 in words is "one billion, two hundred fifty-five million, two hundred three thousand, forty-five".