2146007261 has 4 divisors (see below), whose sum is σ = 2146105500. Its totient is φ = 2145909024.

The previous prime is 2146007243. The next prime is 2146007287. The reversal of 2146007261 is 1627006412.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in 2 ways, for example, as 1223670361 + 922336900 = 34981^2 + 30370^2 .

It is a cyclic number.

It is not a de Polignac number, because 2146007261 - 2¹⁴ = 2145990877 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2146007561) 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, 65 + ... + 65513.

It is an arithmetic number, because the mean of its divisors is an integer number (536526375).

Almost surely, 2^2146007261 is an apocalyptic number.

It is an amenable number.

2146007261 is a deficient number, since it is larger than the sum of its proper divisors (98239).

2146007261 is an equidigital number, since it uses as much as digits as its factorization.

2146007261 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 98238.

The product of its (nonzero) digits is 4032, while the sum is 29.

The square root of 2146007261 is about 46325.0176578488. The cubic root of 2146007261 is about 1289.8634274421.

The spelling of 2146007261 in words is "two billion, one hundred forty-six million, seven thousand, two hundred sixty-one".