501148011 has 32 divisors (see below), whose sum is σ = 827911168. Its totient is φ = 262569600.

The previous prime is 501147979. The next prime is 501148013. The reversal of 501148011 is 110841105.

It is a happy number.

It is not a de Polignac number, because 501148011 - 2⁵ = 501147979 is a prime.

It is a super-2 number, since 2×501148011² = 502298657858512242, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is not an unprimeable number, because it can be changed into a prime (501148013) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 35145 + ... + 47301.

It is an arithmetic number, because the mean of its divisors is an integer number (25872224).

Almost surely, 2^501148011 is an apocalyptic number.

501148011 is a deficient number, since it is larger than the sum of its proper divisors (326763157).

501148011 is a wasteful number, since it uses less digits than its factorization.

501148011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12331.

The product of its (nonzero) digits is 160, while the sum is 21.

The square root of 501148011 is about 22386.3353633416. The cubic root of 501148011 is about 794.3075129587.

Adding to 501148011 its reverse (110841105), we get a palindrome (611989116).

The spelling of 501148011 in words is "five hundred one million, one hundred forty-eight thousand, eleven".