611001012 has 48 divisors (see below), whose sum is σ = 1588991040. Its totient is φ = 181596672.

The previous prime is 611001011. The next prime is 611001019. The reversal of 611001012 is 210100116.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (12).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (611001011) 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 15 ways as a sum of consecutive naturals, for example, 74943 + ... + 82694.

It is an arithmetic number, because the mean of its divisors is an integer number (33103980).

Almost surely, 2^611001012 is an apocalyptic number.

It is an amenable number.

611001012 is an abundant number, since it is smaller than the sum of its proper divisors (977990028).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

611001012 is a wasteful number, since it uses less digits than its factorization.

611001012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 157680 (or 157678 counting only the distinct ones).

The product of its (nonzero) digits is 12, while the sum is 12.

The square root of 611001012 is about 24718.4346591769. The cubic root of 611001012 is about 848.5562629059.

Adding to 611001012 its reverse (210100116), we get a palindrome (821101128).

The spelling of 611001012 in words is "six hundred eleven million, one thousand, twelve".