654901601 has 2 divisors, whose sum is σ = 654901602. Its totient is φ = 654901600.

The previous prime is 654901579. The next prime is 654901603. The reversal of 654901601 is 106109456.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 538240000 + 116661601 = 23200^2 + 10801^2 .

It is a cyclic number.

It is not a de Polignac number, because 654901601 - 2⁶ = 654901537 is a prime.

It is a super-2 number, since 2×654901601² = 857792213984726402, which contains 22 as substring.

Together with 654901603, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (654901603) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 327450800 + 327450801.

It is an arithmetic number, because the mean of its divisors is an integer number (327450801).

Almost surely, 2^654901601 is an apocalyptic number.

It is an amenable number.

654901601 is a deficient number, since it is larger than the sum of its proper divisors (1).

654901601 is an equidigital number, since it uses as much as digits as its factorization.

654901601 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 6480, while the sum is 32.

The square root of 654901601 is about 25591.0453283956. The cubic root of 654901601 is about 868.4110695135.

The spelling of 654901601 in words is "six hundred fifty-four million, nine hundred one thousand, six hundred one".