3281934157 has 2 divisors, whose sum is σ = 3281934158. Its totient is φ = 3281934156.

The previous prime is 3281934119. The next prime is 3281934191. The reversal of 3281934157 is 7514391823.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 3142835721 + 139098436 = 56061^2 + 11794^2 .

It is a cyclic number.

It is not a de Polignac number, because 3281934157 - 2¹¹ = 3281932109 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3281934857) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1640967078 + 1640967079.

It is an arithmetic number, because the mean of its divisors is an integer number (1640967079).

Almost surely, 2^3281934157 is an apocalyptic number.

It is an amenable number.

3281934157 is a deficient number, since it is larger than the sum of its proper divisors (1).

3281934157 is an equidigital number, since it uses as much as digits as its factorization.

3281934157 is an evil number, because the sum of its binary digits is even.

The product of its digits is 181440, while the sum is 43.

The square root of 3281934157 is about 57288.1676875775. The cubic root of 3281934157 is about 1486.0837591295.

The spelling of 3281934157 in words is "three billion, two hundred eighty-one million, nine hundred thirty-four thousand, one hundred fifty-seven".