2234605861 has 4 divisors (see below), whose sum is σ = 2295000652. Its totient is φ = 2174211072.

The previous prime is 2234605823. The next prime is 2234605889. The reversal of 2234605861 is 1685064322.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 1049112100 + 1185493761 = 32390^2 + 34431^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2234605861 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (37), and also a Moran number because the ratio is a prime number: 60394753 = 2234605861 / (2 + 2 + 3 + 4 + 6 + 0 + 5 + 8 + 6 + 1).

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 2234605861.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2234605801) 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, 30197340 + ... + 30197413.

It is an arithmetic number, because the mean of its divisors is an integer number (573750163).

Almost surely, 2^2234605861 is an apocalyptic number.

It is an amenable number.

2234605861 is a deficient number, since it is larger than the sum of its proper divisors (60394791).

2234605861 is an equidigital number, since it uses as much as digits as its factorization.

2234605861 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 60394790.

The product of its (nonzero) digits is 69120, while the sum is 37.

The square root of 2234605861 is about 47271.6179223855. The cubic root of 2234605861 is about 1307.3754068951.

The spelling of 2234605861 in words is "two billion, two hundred thirty-four million, six hundred five thousand, eight hundred sixty-one".