654771041 has 2 divisors, whose sum is σ = 654771042. Its totient is φ = 654771040.

The previous prime is 654771001. The next prime is 654771043. The reversal of 654771041 is 140177456.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 651270400 + 3500641 = 25520^2 + 1871^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-654771041 is a prime.

It is a super-2 number, since 2×654771041² = 857450232264447362, which contains 22 as substring.

Together with 654771043, it forms a pair of twin primes.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 654770992 and 654771010.

It is not a weakly prime, because it can be changed into another prime (654771043) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 327385520 + 327385521.

It is an arithmetic number, because the mean of its divisors is an integer number (327385521).

Almost surely, 2^654771041 is an apocalyptic number.

It is an amenable number.

654771041 is a deficient number, since it is larger than the sum of its proper divisors (1).

654771041 is an equidigital number, since it uses as much as digits as its factorization.

654771041 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 23520, while the sum is 35.

The square root of 654771041 is about 25588.4943089663. The cubic root of 654771041 is about 868.3533573909.

The spelling of 654771041 in words is "six hundred fifty-four million, seven hundred seventy-one thousand, forty-one".