654691054 has 4 divisors (see below), whose sum is σ = 982036584. Its totient is φ = 327345526.

The previous prime is 654691049. The next prime is 654691057. The reversal of 654691054 is 450196456.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a junction number, because it is equal to n+sod(n) for n = 654690998 and 654691016.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (654691057) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 163672762 + ... + 163672765.

It is an arithmetic number, because the mean of its divisors is an integer number (245509146).

Almost surely, 2^654691054 is an apocalyptic number.

654691054 is a deficient number, since it is larger than the sum of its proper divisors (327345530).

654691054 is a wasteful number, since it uses less digits than its factorization.

654691054 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 327345529.

The product of its (nonzero) digits is 129600, while the sum is 40.

The square root of 654691054 is about 25586.9313126838. The cubic root of 654691054 is about 868.3179965273.

The spelling of 654691054 in words is "six hundred fifty-four million, six hundred ninety-one thousand, fifty-four".