492197149 has 2 divisors, whose sum is σ = 492197150. Its totient is φ = 492197148.

The previous prime is 492197129. The next prime is 492197161. The reversal of 492197149 is 941791294.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 492041124 + 156025 = 22182^2 + 395^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-492197149 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 492197099 and 492197108.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (492197119) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 246098574 + 246098575.

It is an arithmetic number, because the mean of its divisors is an integer number (246098575).

Almost surely, 2^492197149 is an apocalyptic number.

It is an amenable number.

492197149 is a deficient number, since it is larger than the sum of its proper divisors (1).

492197149 is an equidigital number, since it uses as much as digits as its factorization.

492197149 is an evil number, because the sum of its binary digits is even.

The product of its digits is 163296, while the sum is 46.

The square root of 492197149 is about 22185.5166493819. The cubic root of 492197149 is about 789.5501091699.

The spelling of 492197149 in words is "four hundred ninety-two million, one hundred ninety-seven thousand, one hundred forty-nine".