2151073 has 2 divisors, whose sum is σ = 2151074. Its totient is φ = 2151072.

The previous prime is 2151031. The next prime is 2151089. The reversal of 2151073 is 3701512.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2122849 + 28224 = 1457^2 + 168^2 .

It is a cyclic number.

It is not a de Polignac number, because 2151073 - 2¹⁷ = 2020001 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 2151073.

It is not a weakly prime, because it can be changed into another prime (2151013) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1075536 + 1075537.

It is an arithmetic number, because the mean of its divisors is an integer number (1075537).

2^2151073 is an apocalyptic number.

It is an amenable number.

2151073 is a deficient number, since it is larger than the sum of its proper divisors (1).

2151073 is an equidigital number, since it uses as much as digits as its factorization.

2151073 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 210, while the sum is 19.

The square root of 2151073 is about 1466.6536741849. The cubic root of 2151073 is about 129.0877555240.

Adding to 2151073 its reverse (3701512), we get a palindrome (5852585).

The spelling of 2151073 in words is "two million, one hundred fifty-one thousand, seventy-three".