1648285051 has 4 divisors (see below), whose sum is σ = 1883754352. Its totient is φ = 1412815752.

The previous prime is 1648285049. The next prime is 1648285057. The reversal of 1648285051 is 1505828461.

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: 1505828461 = 383 ⋅3931667.

It is a cyclic number.

It is not a de Polignac number, because 1648285051 - 2¹ = 1648285049 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1648284995 and 1648285013.

It is not an unprimeable number, because it can be changed into a prime (1648285057) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 117734640 + ... + 117734653.

It is an arithmetic number, because the mean of its divisors is an integer number (470938588).

Almost surely, 2^1648285051 is an apocalyptic number.

1648285051 is a deficient number, since it is larger than the sum of its proper divisors (235469301).

1648285051 is an equidigital number, since it uses as much as digits as its factorization.

1648285051 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 235469300.

The product of its (nonzero) digits is 76800, while the sum is 40.

The square root of 1648285051 is about 40599.0769722663. The cubic root of 1648285051 is about 1181.2562153177.

The spelling of 1648285051 in words is "one billion, six hundred forty-eight million, two hundred eighty-five thousand, fifty-one".