1605232373 has 2 divisors, whose sum is σ = 1605232374. Its totient is φ = 1605232372.

The previous prime is 1605232357. The next prime is 1605232379. The reversal of 1605232373 is 3732325061.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1604563249 + 669124 = 40057^2 + 818^2 .

It is a cyclic number.

It is not a de Polignac number, because 1605232373 - 2⁴ = 1605232357 is a prime.

It is a super-2 number, since 2×1605232373² = 5153541942654422258, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1605232379) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 802616186 + 802616187.

It is an arithmetic number, because the mean of its divisors is an integer number (802616187).

Almost surely, 2^1605232373 is an apocalyptic number.

It is an amenable number.

1605232373 is a deficient number, since it is larger than the sum of its proper divisors (1).

1605232373 is an equidigital number, since it uses as much as digits as its factorization.

1605232373 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 22680, while the sum is 32.

The square root of 1605232373 is about 40065.3512776314. The cubic root of 1605232373 is about 1170.8806706184.

The spelling of 1605232373 in words is "one billion, six hundred five million, two hundred thirty-two thousand, three hundred seventy-three".