612100071 has 40 divisors (see below), whose sum is σ = 1031936400. Its totient is φ = 358162560.

The previous prime is 612100061. The next prime is 612100091. The reversal of 612100071 is 170001216.

It is not a de Polignac number, because 612100071 - 2⁵ = 612100039 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (612100031) by changing a digit.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 13995 + ... + 37683.

It is an arithmetic number, because the mean of its divisors is an integer number (25798410).

Almost surely, 2^612100071 is an apocalyptic number.

612100071 is a deficient number, since it is larger than the sum of its proper divisors (419836329).

612100071 is a wasteful number, since it uses less digits than its factorization.

612100071 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23741 (or 23732 counting only the distinct ones).

The product of its (nonzero) digits is 84, while the sum is 18.

The square root of 612100071 is about 24740.6562362440. The cubic root of 612100071 is about 849.0647480243.

Adding to 612100071 its reverse (170001216), we get a palindrome (782101287).

The spelling of 612100071 in words is "six hundred twelve million, one hundred thousand, seventy-one".