501011145 has 48 divisors (see below), whose sum is σ = 886339584. Its totient is φ = 261744000.

The previous prime is 501011141. The next prime is 501011149. The reversal of 501011145 is 541110105.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (501011141) and next prime (501011149).

It is not a de Polignac number, because 501011145 - 2² = 501011141 is a prime.

It is a super-2 number, since 2×501011145² = 502024334828422050, which contains 22 as substring.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (501011141) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 609835 + ... + 610655.

It is an arithmetic number, because the mean of its divisors is an integer number (18465408).

Almost surely, 2^501011145 is an apocalyptic number.

It is an amenable number.

501011145 is a deficient number, since it is larger than the sum of its proper divisors (385328439).

501011145 is a wasteful number, since it uses less digits than its factorization.

501011145 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1094 (or 1091 counting only the distinct ones).

The product of its (nonzero) digits is 100, while the sum is 18.

The square root of 501011145 is about 22383.2782451544. The cubic root of 501011145 is about 794.2351966051.

The spelling of 501011145 in words is "five hundred one million, eleven thousand, one hundred forty-five".