499142069 has 4 divisors (see below), whose sum is σ = 500445696. Its totient is φ = 497838444.

The previous prime is 499142057. The next prime is 499142081. The reversal of 499142069 is 960241994.

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 an interprime number because it is at equal distance from previous prime (499142057) and next prime (499142081).

It is a cyclic number.

It is not a de Polignac number, because 499142069 - 2²⁴ = 482364853 is a prime.

It is a super-2 number, since 2×499142069² = 498285610091201522, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (499142009) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 651239 + ... + 652004.

It is an arithmetic number, because the mean of its divisors is an integer number (125111424).

Almost surely, 2^499142069 is an apocalyptic number.

It is an amenable number.

499142069 is a deficient number, since it is larger than the sum of its proper divisors (1303627).

499142069 is a wasteful number, since it uses less digits than its factorization.

499142069 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1303626.

The product of its (nonzero) digits is 139968, while the sum is 44.

The square root of 499142069 is about 22341.4876183302. The cubic root of 499142069 is about 793.2463059013.

The spelling of 499142069 in words is "four hundred ninety-nine million, one hundred forty-two thousand, sixty-nine".