2151293 has 2 divisors, whose sum is σ = 2151294. Its totient is φ = 2151292.

The previous prime is 2151283. The next prime is 2151301. The reversal of 2151293 is 3921512.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1684804 + 466489 = 1298^2 + 683^2 .

It is a cyclic number.

It is not a de Polignac number, because 2151293 - 2¹⁶ = 2085757 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2151203) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1075646 + 1075647.

It is an arithmetic number, because the mean of its divisors is an integer number (1075647).

2^2151293 is an apocalyptic number.

It is an amenable number.

2151293 is a deficient number, since it is larger than the sum of its proper divisors (1).

2151293 is an equidigital number, since it uses as much as digits as its factorization.

2151293 is an evil number, because the sum of its binary digits is even.

The product of its digits is 540, while the sum is 23.

The square root of 2151293 is about 1466.7286729317. The cubic root of 2151293 is about 129.0921561709.

The spelling of 2151293 in words is "two million, one hundred fifty-one thousand, two hundred ninety-three".