490545121 has 16 divisors (see below), whose sum is σ = 554688000. Its totient is φ = 429721600.

The previous prime is 490545119. The next prime is 490545131. The reversal of 490545121 is 121545094.

It is not a de Polignac number, because 490545121 - 2¹ = 490545119 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (490545131) 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, 203280 + ... + 205678.

It is an arithmetic number, because the mean of its divisors is an integer number (34668000).

Almost surely, 2^490545121 is an apocalyptic number.

It is an amenable number.

490545121 is a deficient number, since it is larger than the sum of its proper divisors (64142879).

490545121 is a wasteful number, since it uses less digits than its factorization.

490545121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3080.

The product of its (nonzero) digits is 7200, while the sum is 31.

The square root of 490545121 is about 22148.2532268348. The cubic root of 490545121 is about 788.6657609978.

The spelling of 490545121 in words is "four hundred ninety million, five hundred forty-five thousand, one hundred twenty-one".