494122137 has 4 divisors (see below), whose sum is σ = 658829520. Its totient is φ = 329414756.

The previous prime is 494122103. The next prime is 494122141. The reversal of 494122137 is 731221494.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 494122137 - 2¹² = 494118041 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 494122098 and 494122107.

It is not an unprimeable number, because it can be changed into a prime (494122177) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 82353687 + ... + 82353692.

It is an arithmetic number, because the mean of its divisors is an integer number (164707380).

Almost surely, 2^494122137 is an apocalyptic number.

It is an amenable number.

494122137 is a deficient number, since it is larger than the sum of its proper divisors (164707383).

494122137 is a wasteful number, since it uses less digits than its factorization.

494122137 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 164707382.

The product of its digits is 12096, while the sum is 33.

The square root of 494122137 is about 22228.8582027958. The cubic root of 494122137 is about 790.5780829997.

The spelling of 494122137 in words is "four hundred ninety-four million, one hundred twenty-two thousand, one hundred thirty-seven".