2152730261 has 8 divisors (see below), whose sum is σ = 2371686048. Its totient is φ = 1937650000.

The previous prime is 2152730219. The next prime is 2152730273. The reversal of 2152730261 is 1620372512.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 2152730261 - 2¹⁰ = 2152729237 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 (2152730201) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 967715 + ... + 969936.

It is an arithmetic number, because the mean of its divisors is an integer number (296460756).

Almost surely, 2^2152730261 is an apocalyptic number.

It is an amenable number.

2152730261 is a deficient number, since it is larger than the sum of its proper divisors (218955787).

2152730261 is a wasteful number, since it uses less digits than its factorization.

2152730261 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1937763.

The product of its (nonzero) digits is 5040, while the sum is 29.

The square root of 2152730261 is about 46397.5242981778. The cubic root of 2152730261 is about 1291.2089823713.

The spelling of 2152730261 in words is "two billion, one hundred fifty-two million, seven hundred thirty thousand, two hundred sixty-one".