493975129 has 4 divisors (see below), whose sum is σ = 519973840. Its totient is φ = 467976420.

The previous prime is 493975109. The next prime is 493975147. The reversal of 493975129 is 921579394.

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, and also an emirpimes, since its reverse is a distinct semiprime: 921579394 = 2 ⋅460789697.

It is a cyclic number.

It is not a de Polignac number, because 493975129 - 2¹³ = 493966937 is a prime.

It is a super-2 number, since 2×493975129² = 488022856141133282, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (493975109) 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, 12999327 + ... + 12999364.

It is an arithmetic number, because the mean of its divisors is an integer number (129993460).

Almost surely, 2^493975129 is an apocalyptic number.

It is an amenable number.

493975129 is a deficient number, since it is larger than the sum of its proper divisors (25998711).

493975129 is a wasteful number, since it uses less digits than its factorization.

493975129 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25998710.

The product of its digits is 612360, while the sum is 49.

The square root of 493975129 is about 22225.5512642544. The cubic root of 493975129 is about 790.4996726757.

The spelling of 493975129 in words is "four hundred ninety-three million, nine hundred seventy-five thousand, one hundred twenty-nine".