1255213153 has 16 divisors (see below), whose sum is σ = 1291870800. Its totient is φ = 1219276800.

The previous prime is 1255213147. The next prime is 1255213159. The reversal of 1255213153 is 3513125521.

It is an interprime number because it is at equal distance from previous prime (1255213147) and next prime (1255213159).

It can be written as a sum of positive squares in 8 ways, for example, as 1203409 + 1254009744 = 1097^2 + 35412^2 .

It is a cyclic number.

It is not a de Polignac number, because 1255213153 - 2⁵ = 1255213121 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1255213159) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1243513 + ... + 1244521.

It is an arithmetic number, because the mean of its divisors is an integer number (80741925).

Almost surely, 2^1255213153 is an apocalyptic number.

It is an amenable number.

1255213153 is a deficient number, since it is larger than the sum of its proper divisors (36657647).

1255213153 is a wasteful number, since it uses less digits than its factorization.

1255213153 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1332.

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

The square root of 1255213153 is about 35428.9874678913. The cubic root of 1255213153 is about 1078.7127877019.

Adding to 1255213153 its reverse (3513125521), we get a palindrome (4768338674).

The spelling of 1255213153 in words is "one billion, two hundred fifty-five million, two hundred thirteen thousand, one hundred fifty-three".