495609156 has 72 divisors (see below), whose sum is σ = 1442785344. Its totient is φ = 140512320.

The previous prime is 495609151. The next prime is 495609173. The reversal of 495609156 is 651906594.

It is a happy number.

495609156 is a `hidden beast` number, since 495 + 6 + 0 + 9 + 156 = 666.

It is a super-2 number, since 2×495609156² = 491256871022064672, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (495609151) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 25506 + ... + 40518.

Almost surely, 2^495609156 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 495609156, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (721392672).

495609156 is an abundant number, since it is smaller than the sum of its proper divisors (947176188).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

495609156 is a wasteful number, since it uses less digits than its factorization.

495609156 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15161 (or 15156 counting only the distinct ones).

The product of its (nonzero) digits is 291600, while the sum is 45.

The square root of 495609156 is about 22262.2810152060. The cubic root of 495609156 is about 791.3703481880.

The spelling of 495609156 in words is "four hundred ninety-five million, six hundred nine thousand, one hundred fifty-six".