654623542 has 8 divisors (see below), whose sum is σ = 982147176. Its totient is φ = 327241152.

The previous prime is 654623533. The next prime is 654623551. The reversal of 654623542 is 245326456.

It is an interprime number because it is at equal distance from previous prime (654623533) and next prime (654623551).

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

It is a congruent number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 22843 + ... + 42790.

It is an arithmetic number, because the mean of its divisors is an integer number (122768397).

Almost surely, 2^654623542 is an apocalyptic number.

654623542 is a deficient number, since it is larger than the sum of its proper divisors (327523634).

654623542 is a wasteful number, since it uses less digits than its factorization.

654623542 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 70622.

The product of its digits is 172800, while the sum is 37.

The square root of 654623542 is about 25585.6120114411. The cubic root of 654623542 is about 868.2881484030.

Adding to 654623542 its reverse (245326456), we get a palindrome (899949998).

The spelling of 654623542 in words is "six hundred fifty-four million, six hundred twenty-three thousand, five hundred forty-two".