654407161 has 2 divisors, whose sum is σ = 654407162. Its totient is φ = 654407160.

The previous prime is 654407147. The next prime is 654407233. The reversal of 654407161 is 161704456.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 654387561 + 19600 = 25581^2 + 140^2 .

It is a cyclic number.

It is not a de Polignac number, because 654407161 - 2¹⁵ = 654374393 is a prime.

It is not a weakly prime, because it can be changed into another prime (654407261) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 327203580 + 327203581.

It is an arithmetic number, because the mean of its divisors is an integer number (327203581).

Almost surely, 2^654407161 is an apocalyptic number.

It is an amenable number.

654407161 is a deficient number, since it is larger than the sum of its proper divisors (1).

654407161 is an equidigital number, since it uses as much as digits as its factorization.

654407161 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 20160, while the sum is 34.

The square root of 654407161 is about 25581.3830939611. The cubic root of 654407161 is about 868.1924691052.

The spelling of 654407161 in words is "six hundred fifty-four million, four hundred seven thousand, one hundred sixty-one".