497148761 has 16 divisors (see below), whose sum is σ = 522897024. Its totient is φ = 472189824.

The previous prime is 497148733. The next prime is 497148779. The reversal of 497148761 is 167841794.

It is a happy number.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-497148761 is a prime.

It is a Smith number, since the sum of its digits (47) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (497148791) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 277310 + ... + 279096.

It is an arithmetic number, because the mean of its divisors is an integer number (32681064).

Almost surely, 2^497148761 is an apocalyptic number.

It is an amenable number.

497148761 is a deficient number, since it is larger than the sum of its proper divisors (25748263).

497148761 is a wasteful number, since it uses less digits than its factorization.

497148761 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2000.

The product of its digits is 338688, while the sum is 47.

The square root of 497148761 is about 22296.8329813900. The cubic root of 497148761 is about 792.1889625175.

The spelling of 497148761 in words is "four hundred ninety-seven million, one hundred forty-eight thousand, seven hundred sixty-one".