1255269213 has 24 divisors (see below), whose sum is σ = 1992459456. Its totient is φ = 755208000.

The previous prime is 1255269199. The next prime is 1255269217. The reversal of 1255269213 is 3129625521.

It is a happy number.

1255269213 is a `hidden beast` number, since 1 + 2 + 552 + 6 + 92 + 13 = 666.

It is not a de Polignac number, because 1255269213 - 2⁹ = 1255268701 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1255269217) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 32713 + ... + 59838.

It is an arithmetic number, because the mean of its divisors is an integer number (83019144).

Almost surely, 2^1255269213 is an apocalyptic number.

It is an amenable number.

1255269213 is a deficient number, since it is larger than the sum of its proper divisors (737190243).

1255269213 is a wasteful number, since it uses less digits than its factorization.

1255269213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 92705 (or 92702 counting only the distinct ones).

The product of its digits is 32400, while the sum is 36.

The square root of 1255269213 is about 35429.7786191221. The cubic root of 1255269213 is about 1078.7288465252.

The spelling of 1255269213 in words is "one billion, two hundred fifty-five million, two hundred sixty-nine thousand, two hundred thirteen".