2162156073 has 16 divisors (see below), whose sum is σ = 3594233856. Its totient is φ = 1123197840.

The previous prime is 2162156071. The next prime is 2162156107. The reversal of 2162156073 is 3706512612.

It is not a de Polignac number, because 2162156073 - 2¹ = 2162156071 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (2162156071) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4679761 + ... + 4680222.

It is an arithmetic number, because the mean of its divisors is an integer number (224639616).

Almost surely, 2^2162156073 is an apocalyptic number.

It is an amenable number.

2162156073 is a deficient number, since it is larger than the sum of its proper divisors (1432077783).

2162156073 is a wasteful number, since it uses less digits than its factorization.

2162156073 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9360004.

The product of its (nonzero) digits is 15120, while the sum is 33.

The square root of 2162156073 is about 46498.9900212897. The cubic root of 2162156073 is about 1293.0907745528.

Adding to 2162156073 its reverse (3706512612), we get a palindrome (5868668685).

The spelling of 2162156073 in words is "two billion, one hundred sixty-two million, one hundred fifty-six thousand, seventy-three".