499142641 has 2 divisors, whose sum is σ = 499142642. Its totient is φ = 499142640.

The previous prime is 499142603. The next prime is 499142647. The reversal of 499142641 is 146241994.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 312547041 + 186595600 = 17679^2 + 13660^2 .

It is a cyclic number.

It is not a de Polignac number, because 499142641 - 2⁷ = 499142513 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 499142594 and 499142603.

It is not a weakly prime, because it can be changed into another prime (499142647) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 249571320 + 249571321.

It is an arithmetic number, because the mean of its divisors is an integer number (249571321).

Almost surely, 2^499142641 is an apocalyptic number.

It is an amenable number.

499142641 is a deficient number, since it is larger than the sum of its proper divisors (1).

499142641 is an equidigital number, since it uses as much as digits as its factorization.

499142641 is an evil number, because the sum of its binary digits is even.

The product of its digits is 62208, while the sum is 40.

The square root of 499142641 is about 22341.5004196227. The cubic root of 499142641 is about 793.2466089124.

The spelling of 499142641 in words is "four hundred ninety-nine million, one hundred forty-two thousand, six hundred forty-one".