492161641 has 2 divisors, whose sum is σ = 492161642. Its totient is φ = 492161640.

The previous prime is 492161627. The next prime is 492161647. The reversal of 492161641 is 146161294.

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., 491553241 + 608400 = 22171^2 + 780^2 .

It is a cyclic number.

It is not a de Polignac number, because 492161641 - 2¹³ = 492153449 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 492161597 and 492161606.

It is not a weakly prime, because it can be changed into another prime (492161647) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 246080820 + 246080821.

It is an arithmetic number, because the mean of its divisors is an integer number (246080821).

Almost surely, 2^492161641 is an apocalyptic number.

It is an amenable number.

492161641 is a deficient number, since it is larger than the sum of its proper divisors (1).

492161641 is an equidigital number, since it uses as much as digits as its factorization.

492161641 is an evil number, because the sum of its binary digits is even.

The product of its digits is 10368, while the sum is 34.

The square root of 492161641 is about 22184.7163831319. The cubic root of 492161641 is about 789.5311221851.

The spelling of 492161641 in words is "four hundred ninety-two million, one hundred sixty-one thousand, six hundred forty-one".