1245255436 has 12 divisors (see below), whose sum is σ = 2180672928. Its totient is φ = 622206032.

The previous prime is 1245255419. The next prime is 1245255449. The reversal of 1245255436 is 6345525421.

It is a super-2 number, since 2×1245255436² = 3101322201775100192, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1245255395 and 1245255404.

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 3 ways as a sum of consecutive naturals, for example, 98731 + ... + 110626.

It is an arithmetic number, because the mean of its divisors is an integer number (181722744).

Almost surely, 2^1245255436 is an apocalyptic number.

It is an amenable number.

1245255436 is a deficient number, since it is larger than the sum of its proper divisors (935417492).

1245255436 is a wasteful number, since it uses less digits than its factorization.

1245255436 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 210848 (or 210846 counting only the distinct ones).

The product of its digits is 144000, while the sum is 37.

The square root of 1245255436 is about 35288.1770002362. The cubic root of 1245255436 is about 1075.8527032193.

The spelling of 1245255436 in words is "one billion, two hundred forty-five million, two hundred fifty-five thousand, four hundred thirty-six".