491514506 has 16 divisors (see below), whose sum is σ = 892161216. Its totient is φ = 198257856.

The previous prime is 491514503. The next prime is 491514509. The reversal of 491514506 is 605415194.

It is an interprime number because it is at equal distance from previous prime (491514503) and next prime (491514509).

It is not an unprimeable number, because it can be changed into a prime (491514503) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1032356 + ... + 1032831.

It is an arithmetic number, because the mean of its divisors is an integer number (55760076).

Almost surely, 2^491514506 is an apocalyptic number.

491514506 is a deficient number, since it is larger than the sum of its proper divisors (400646710).

491514506 is a wasteful number, since it uses less digits than its factorization.

491514506 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2065213.

The product of its (nonzero) digits is 21600, while the sum is 35.

The square root of 491514506 is about 22170.1264317550. The cubic root of 491514506 is about 789.1849233735.

The spelling of 491514506 in words is "four hundred ninety-one million, five hundred fourteen thousand, five hundred six".