497941138 has 4 divisors (see below), whose sum is σ = 746911710. Its totient is φ = 248970568.

The previous prime is 497941117. The next prime is 497941141. The reversal of 497941138 is 831149794.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 304258249 + 193682889 = 17443^2 + 13917^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 124485283 + ... + 124485286.

Almost surely, 2^497941138 is an apocalyptic number.

497941138 is a deficient number, since it is larger than the sum of its proper divisors (248970572).

497941138 is a wasteful number, since it uses less digits than its factorization.

497941138 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 248970571.

The product of its digits is 217728, while the sum is 46.

The square root of 497941138 is about 22314.5947308034. The cubic root of 497941138 is about 792.6096140181.

The spelling of 497941138 in words is "four hundred ninety-seven million, nine hundred forty-one thousand, one hundred thirty-eight".