1354248643 has 8 divisors (see below), whose sum is σ = 1480893120. Its totient is φ = 1228192680.

The previous prime is 1354248607. The next prime is 1354248659. The reversal of 1354248643 is 3468424531.

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

It is not a de Polignac number, because 1354248643 - 2⁹ = 1354248131 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1354248596 and 1354248605.

It is not an unprimeable number, because it can be changed into a prime (1354248143) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 142305 + ... + 151522.

It is an arithmetic number, because the mean of its divisors is an integer number (185111640).

Almost surely, 2^1354248643 is an apocalyptic number.

1354248643 is a deficient number, since it is larger than the sum of its proper divisors (126644477).

1354248643 is a wasteful number, since it uses less digits than its factorization.

1354248643 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 294257.

The product of its digits is 276480, while the sum is 40.

The square root of 1354248643 is about 36800.1174318778. The cubic root of 1354248643 is about 1106.3676528108.

The spelling of 1354248643 in words is "one billion, three hundred fifty-four million, two hundred forty-eight thousand, six hundred forty-three".