2165460121 has 8 divisors (see below), whose sum is σ = 2366071488. Its totient is φ = 1965474000.

The previous prime is 2165460103. The next prime is 2165460133. The reversal of 2165460121 is 1210645612.

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

It is a cyclic number.

It is not a de Polignac number, because 2165460121 - 2¹⁵ = 2165427353 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 2165460121.

It is not an unprimeable number, because it can be changed into a prime (2165460181) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 149050 + ... + 162931.

It is an arithmetic number, because the mean of its divisors is an integer number (295758936).

Almost surely, 2^2165460121 is an apocalyptic number.

It is an amenable number.

2165460121 is a deficient number, since it is larger than the sum of its proper divisors (200611367).

2165460121 is a wasteful number, since it uses less digits than its factorization.

2165460121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 312623.

The product of its (nonzero) digits is 2880, while the sum is 28.

The square root of 2165460121 is about 46534.5046282863. The cubic root of 2165460121 is about 1293.7491080890.

The spelling of 2165460121 in words is "two billion, one hundred sixty-five million, four hundred sixty thousand, one hundred twenty-one".