495902121 has 64 divisors (see below), whose sum is σ = 832156416. Its totient is φ = 258048000.

The previous prime is 495902119. The next prime is 495902153. The reversal of 495902121 is 121209594.

It is not a de Polignac number, because 495902121 - 2¹ = 495902119 is a prime.

It is a super-2 number, since 2×495902121² = 491837827224597282, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (495902111) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 707071 + ... + 707771.

It is an arithmetic number, because the mean of its divisors is an integer number (13002444).

Almost surely, 2^495902121 is an apocalyptic number.

It is an amenable number.

495902121 is a deficient number, since it is larger than the sum of its proper divisors (336254295).

495902121 is a wasteful number, since it uses less digits than its factorization.

495902121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 842.

The product of its (nonzero) digits is 6480, while the sum is 33.

The square root of 495902121 is about 22268.8598944805. The cubic root of 495902121 is about 791.5262493611.

The spelling of 495902121 in words is "four hundred ninety-five million, nine hundred two thousand, one hundred twenty-one".