497142009 has 128 divisors (see below), whose sum is σ = 959938560. Its totient is φ = 247276800.

The previous prime is 497142001. The next prime is 497142017. The reversal of 497142009 is 900241794.

It is an interprime number because it is at equal distance from previous prime (497142001) and next prime (497142017).

It is not a de Polignac number, because 497142009 - 2³ = 497142001 is a prime.

It is a super-2 number, since 2×497142009² = 494300354225112162, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (497142001) by changing a digit.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 4646134 + ... + 4646240.

It is an arithmetic number, because the mean of its divisors is an integer number (7499520).

Almost surely, 2^497142009 is an apocalyptic number.

It is an amenable number.

497142009 is a deficient number, since it is larger than the sum of its proper divisors (462796551).

497142009 is a wasteful number, since it uses less digits than its factorization.

497142009 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 228 (or 222 counting only the distinct ones).

The product of its (nonzero) digits is 18144, while the sum is 36.

The square root of 497142009 is about 22296.6815692381. The cubic root of 497142009 is about 792.1853761436.

The spelling of 497142009 in words is "four hundred ninety-seven million, one hundred forty-two thousand, nine".