1248454646 has 4 divisors (see below), whose sum is σ = 1872681972. Its totient is φ = 624227322.

The previous prime is 1248454639. The next prime is 1248454667. The reversal of 1248454646 is 6464548421.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 6464548421 = 1109 ⋅5829169.

It is a junction number, because it is equal to n+sod(n) for n = 1248454597 and 1248454606.

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 as a sum of consecutive naturals, namely, 312113660 + ... + 312113663.

It is an arithmetic number, because the mean of its divisors is an integer number (468170493).

Almost surely, 2^1248454646 is an apocalyptic number.

1248454646 is a deficient number, since it is larger than the sum of its proper divisors (624227326).

1248454646 is an equidigital number, since it uses as much as digits as its factorization.

1248454646 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 624227325.

The product of its digits is 737280, while the sum is 44.

The square root of 1248454646 is about 35333.4776946736. The cubic root of 1248454646 is about 1076.7732467197.

The spelling of 1248454646 in words is "one billion, two hundred forty-eight million, four hundred fifty-four thousand, six hundred forty-six".