499145801 has 24 divisors (see below), whose sum is σ = 640021536. Its totient is φ = 384894720.

The previous prime is 499145783. The next prime is 499145807. The reversal of 499145801 is 108541994.

It is a de Polignac number, because none of the positive numbers 2^k-499145801 is a prime.

It is a super-3 number, since 3×499145801³ (a number of 27 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (499145807) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 47510 + ... + 57056.

It is an arithmetic number, because the mean of its divisors is an integer number (26667564).

Almost surely, 2^499145801 is an apocalyptic number.

It is an amenable number.

499145801 is a deficient number, since it is larger than the sum of its proper divisors (140875735).

499145801 is a wasteful number, since it uses less digits than its factorization.

499145801 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9669 (or 9662 counting only the distinct ones).

The product of its (nonzero) digits is 51840, while the sum is 41.

The square root of 499145801 is about 22341.5711399176. The cubic root of 499145801 is about 793.2482828854.

The spelling of 499145801 in words is "four hundred ninety-nine million, one hundred forty-five thousand, eight hundred one".