495121 has 16 divisors (see below), whose sum is σ = 599040. Its totient is φ = 403920.

The previous prime is 495119. The next prime is 495133. The reversal of 495121 is 121594.

495121 = T₈₈ + T₈₉ + ... + T₁₅₃.

It is not a de Polignac number, because 495121 - 2¹ = 495119 is a prime.

It is a Duffinian number.

495121 is a lucky number.

It is a junction number, because it is equal to n+sod(n) for n = 495092 and 495101.

It is not an unprimeable number, because it can be changed into a prime (495151) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4756 + ... + 4858.

It is an arithmetic number, because the mean of its divisors is an integer number (37440).

2⁴⁹⁵¹²¹ is an apocalyptic number.

It is an amenable number.

495121 is a deficient number, since it is larger than the sum of its proper divisors (103919).

495121 is a wasteful number, since it uses less digits than its factorization.

495121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 156.

The product of its digits is 360, while the sum is 22.

The square root of 495121 is about 703.6483496748. The cubic root of 495121 is about 79.1110439694. Note that the first 3 decimals are identical.

It can be divided in two parts, 495 and 121, that multiplied together give a palindrome (59895).

The spelling of 495121 in words is "four hundred ninety-five thousand, one hundred twenty-one".