654135399 has 8 divisors (see below), whose sum is σ = 969089520. Its totient is φ = 436090248.

The previous prime is 654135389. The next prime is 654135403. The reversal of 654135399 is 993531456.

It is not a de Polignac number, because 654135399 - 2¹⁹ = 653611111 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (654135329) 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 7 ways as a sum of consecutive naturals, for example, 12113592 + ... + 12113645.

It is an arithmetic number, because the mean of its divisors is an integer number (121136190).

Almost surely, 2^654135399 is an apocalyptic number.

654135399 is a deficient number, since it is larger than the sum of its proper divisors (314954121).

654135399 is a wasteful number, since it uses less digits than its factorization.

654135399 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24227246 (or 24227240 counting only the distinct ones).

The product of its digits is 437400, while the sum is 45.

The square root of 654135399 is about 25576.0708280220. The cubic root of 654135399 is about 868.0722715666.

The spelling of 654135399 in words is "six hundred fifty-four million, one hundred thirty-five thousand, three hundred ninety-nine".