491546245 has 16 divisors (see below), whose sum is σ = 657426240. Its totient is φ = 350625024.

The previous prime is 491546243. The next prime is 491546267. The reversal of 491546245 is 542645194.

491546245 = 171² + 172² + ... + 1139².

It is a cyclic number.

It is not a de Polignac number, because 491546245 - 2¹ = 491546243 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 491546198 and 491546207.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (491546243) 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, 150567 + ... + 153796.

It is an arithmetic number, because the mean of its divisors is an integer number (41089140).

Almost surely, 2^491546245 is an apocalyptic number.

It is an amenable number.

491546245 is a deficient number, since it is larger than the sum of its proper divisors (165879995).

491546245 is a wasteful number, since it uses less digits than its factorization.

491546245 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 304404.

The product of its digits is 172800, while the sum is 40.

The square root of 491546245 is about 22170.8422257703. The cubic root of 491546245 is about 789.2019099194.

The spelling of 491546245 in words is "four hundred ninety-one million, five hundred forty-six thousand, two hundred forty-five".