653148894 has 40 divisors (see below), whose sum is σ = 1369185480. Its totient is φ = 207715024.

The previous prime is 653148893. The next prime is 653148911. The reversal of 653148894 is 498841356.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (653148893) 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 19 ways as a sum of consecutive naturals, for example, 1678852 + ... + 1679240.

It is an arithmetic number, because the mean of its divisors is an integer number (34229637).

Almost surely, 2^653148894 is an apocalyptic number.

653148894 is an abundant number, since it is smaller than the sum of its proper divisors (716036586).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

653148894 is an frugal number, since it uses more digits than its factorization.

653148894 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 486 (or 417 counting only the distinct ones).

The product of its digits is 829440, while the sum is 48.

The square root of 653148894 is about 25556.7778485473. Note that the first 3 decimals coincide. The cubic root of 653148894 is about 867.6356705759.

The spelling of 653148894 in words is "six hundred fifty-three million, one hundred forty-eight thousand, eight hundred ninety-four".