494121519 has 32 divisors (see below), whose sum is σ = 747571200. Its totient is φ = 322470720.

The previous prime is 494121479. The next prime is 494121521. The reversal of 494121519 is 915121494.

It is a happy number.

494121519 is a `hidden beast` number, since 494 + 12 + 151 + 9 = 666.

It is not a de Polignac number, because 494121519 - 2¹³ = 494113327 is a prime.

It is a super-2 number, since 2×494121519² = 488312151077734722, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (494121539) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 498114 + ... + 499104.

It is an arithmetic number, because the mean of its divisors is an integer number (23361600).

Almost surely, 2^494121519 is an apocalyptic number.

494121519 is a deficient number, since it is larger than the sum of its proper divisors (253449681).

494121519 is a wasteful number, since it uses less digits than its factorization.

494121519 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1372 (or 1366 counting only the distinct ones).

The product of its digits is 12960, while the sum is 36.

The square root of 494121519 is about 22228.8443019425. The cubic root of 494121519 is about 790.5777534068.

The spelling of 494121519 in words is "four hundred ninety-four million, one hundred twenty-one thousand, five hundred nineteen".