1256523314 has 12 divisors (see below), whose sum is σ = 1989206334. Its totient is φ = 595194912.

The previous prime is 1256523287. The next prime is 1256523337. The reversal of 1256523314 is 4133256521.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 651117289 + 605406025 = 25517^2 + 24605^2 .

It is an unprimeable number.

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 5 ways as a sum of consecutive naturals, for example, 869447 + ... + 870890.

Almost surely, 2^1256523314 is an apocalyptic number.

1256523314 is a deficient number, since it is larger than the sum of its proper divisors (732683020).

1256523314 is a wasteful number, since it uses less digits than its factorization.

1256523314 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1740377 (or 1740358 counting only the distinct ones).

The product of its digits is 21600, while the sum is 32.

The square root of 1256523314 is about 35447.4726038402. The cubic root of 1256523314 is about 1079.0879685992.

Adding to 1256523314 its reverse (4133256521), we get a palindrome (5389779835).

The spelling of 1256523314 in words is "one billion, two hundred fifty-six million, five hundred twenty-three thousand, three hundred fourteen".