2150608261 has 4 divisors (see below), whose sum is σ = 2244112992. Its totient is φ = 2057103532.

The previous prime is 2150608237. The next prime is 2150608297. The reversal of 2150608261 is 1628060512.

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 not a de Polignac number, because 2150608261 - 2⁷ = 2150608133 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 (2150608211) 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, 46752331 + ... + 46752376.

It is an arithmetic number, because the mean of its divisors is an integer number (561028248).

Almost surely, 2^2150608261 is an apocalyptic number.

It is an amenable number.

2150608261 is a deficient number, since it is larger than the sum of its proper divisors (93504731).

2150608261 is an equidigital number, since it uses as much as digits as its factorization.

2150608261 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 93504730.

The product of its (nonzero) digits is 5760, while the sum is 31.

The square root of 2150608261 is about 46374.6510606818. The cubic root of 2150608261 is about 1290.7845839100.

Adding to 2150608261 its reverse (1628060512), we get a palindrome (3778668773).

The spelling of 2150608261 in words is "two billion, one hundred fifty million, six hundred eight thousand, two hundred sixty-one".