611000001 has 12 divisors (see below), whose sum is σ = 895728912. Its totient is φ = 401253336.

The previous prime is 610999997. The next prime is 611000003. The reversal of 611000001 is 100000116.

It is not a de Polignac number, because 611000001 - 2² = 610999997 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (9).

It is not an unprimeable number, because it can be changed into a prime (611000003) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 506031 + ... + 507236.

It is an arithmetic number, because the mean of its divisors is an integer number (74644076).

Almost surely, 2^611000001 is an apocalyptic number.

It is an amenable number.

611000001 is a deficient number, since it is larger than the sum of its proper divisors (284728911).

611000001 is a wasteful number, since it uses less digits than its factorization.

611000001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1013340 (or 1013337 counting only the distinct ones).

The product of its (nonzero) digits is 6, while the sum is 9.

The square root of 611000001 is about 24718.4142088444. The cubic root of 611000001 is about 848.5557948811. Note that the first 3 decimals are identical.

Adding to 611000001 its reverse (100000116), we get a palindrome (711000117).

The spelling of 611000001 in words is "six hundred eleven million, one", and thus it is an aban number.