1255203097 has 4 divisors (see below), whose sum is σ = 1256276176. Its totient is φ = 1254130020.

The previous prime is 1255203077. The next prime is 1255203101. The reversal of 1255203097 is 7903025521.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1255203097 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1255203077) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 534783 + ... + 537124.

It is an arithmetic number, because the mean of its divisors is an integer number (314069044).

Almost surely, 2^1255203097 is an apocalyptic number.

It is an amenable number.

1255203097 is a deficient number, since it is larger than the sum of its proper divisors (1073079).

1255203097 is a wasteful number, since it uses less digits than its factorization.

1255203097 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1073078.

The product of its (nonzero) digits is 18900, while the sum is 34.

The square root of 1255203097 is about 35428.8455499188. The cubic root of 1255203097 is about 1078.7099070319.

The spelling of 1255203097 in words is "one billion, two hundred fifty-five million, two hundred three thousand, ninety-seven".