1245625455 has 8 divisors (see below), whose sum is σ = 1993000752. Its totient is φ = 664333568.

The previous prime is 1245625441. The next prime is 1245625463. The reversal of 1245625455 is 5545265421.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1245625455 - 2⁶ = 1245625391 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 41520834 + ... + 41520863.

It is an arithmetic number, because the mean of its divisors is an integer number (249125094).

Almost surely, 2^1245625455 is an apocalyptic number.

1245625455 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

1245625455 is a deficient number, since it is larger than the sum of its proper divisors (747375297).

1245625455 is an equidigital number, since it uses as much as digits as its factorization.

1245625455 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 83041705.

The product of its digits is 240000, while the sum is 39.

The square root of 1245625455 is about 35293.4194291230. The cubic root of 1245625455 is about 1075.9592533848.

The spelling of 1245625455 in words is "one billion, two hundred forty-five million, six hundred twenty-five thousand, four hundred fifty-five".