802148489 has 4 divisors (see below), whose sum is σ = 802398480. Its totient is φ = 801898500.

The previous prime is 802148461. The next prime is 802148491. The reversal of 802148489 is 984841208.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 802148489 - 2¹² = 802144393 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (802148429) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 120119 + ... + 126620.

It is an arithmetic number, because the mean of its divisors is an integer number (200599620).

Almost surely, 2^802148489 is an apocalyptic number.

It is an amenable number.

802148489 is a deficient number, since it is larger than the sum of its proper divisors (249991).

802148489 is a wasteful number, since it uses less digits than its factorization.

802148489 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 249990.

The product of its (nonzero) digits is 147456, while the sum is 44.

The square root of 802148489 is about 28322.2260601105. The cubic root of 802148489 is about 929.1480574322.

The spelling of 802148489 in words is "eight hundred two million, one hundred forty-eight thousand, four hundred eighty-nine".