3212320157 has 2 divisors, whose sum is σ = 3212320158. Its totient is φ = 3212320156.

The previous prime is 3212320151. The next prime is 3212320201. The reversal of 3212320157 is 7510232123.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2709618916 + 502701241 = 52054^2 + 22421^2 .

It is a cyclic number.

It is not a de Polignac number, because 3212320157 - 2³⁰ = 2138578333 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3212320151) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1606160078 + 1606160079.

It is an arithmetic number, because the mean of its divisors is an integer number (1606160079).

Almost surely, 2^3212320157 is an apocalyptic number.

It is an amenable number.

3212320157 is a deficient number, since it is larger than the sum of its proper divisors (1).

3212320157 is an equidigital number, since it uses as much as digits as its factorization.

3212320157 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2520, while the sum is 26.

The square root of 3212320157 is about 56677.3337146341. Note that the first 3 decimals coincide. The cubic root of 3212320157 is about 1475.5013378831.

The spelling of 3212320157 in words is "three billion, two hundred twelve million, three hundred twenty thousand, one hundred fifty-seven".