654131814 has 64 divisors (see below), whose sum is σ = 1588709376. Its totient is φ = 175279104.

The previous prime is 654131813. The next prime is 654131833. The reversal of 654131814 is 418131456.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (654131813) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 222019 + ... + 224945.

It is an arithmetic number, because the mean of its divisors is an integer number (24823584).

Almost surely, 2^654131814 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 654131814, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (794354688).

654131814 is an abundant number, since it is smaller than the sum of its proper divisors (934577562).

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

654131814 is a wasteful number, since it uses less digits than its factorization.

654131814 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3269.

The product of its digits is 11520, while the sum is 33.

The square root of 654131814 is about 25576.0007428839. Note that the first 3 decimals coincide. The cubic root of 654131814 is about 868.0706857355.

The spelling of 654131814 in words is "six hundred fifty-four million, one hundred thirty-one thousand, eight hundred fourteen".