612101 has 4 divisors (see below), whose sum is σ = 699552. Its totient is φ = 524652.

The previous prime is 612083. The next prime is 612107. The reversal of 612101 is 101216.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 612101 - 2⁶ = 612037 is a prime.

It is an alternating number because its digits alternate between even and odd.

It is a Curzon number.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 612101.

It is not an unprimeable number, because it can be changed into a prime (612107) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 43715 + ... + 43728.

It is an arithmetic number, because the mean of its divisors is an integer number (174888).

2⁶¹²¹⁰¹ is an apocalyptic number.

It is an amenable number.

612101 is a deficient number, since it is larger than the sum of its proper divisors (87451).

612101 is an equidigital number, since it uses as much as digits as its factorization.

612101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 87450.

The product of its (nonzero) digits is 12, while the sum is 11.

The square root of 612101 is about 782.3688388478. The cubic root of 612101 is about 84.9065177573.

Adding to 612101 its reverse (101216), we get a palindrome (713317).

The spelling of 612101 in words is "six hundred twelve thousand, one hundred one".