328461157 has 2 divisors, whose sum is σ = 328461158. Its totient is φ = 328461156.

The previous prime is 328461143. The next prime is 328461251. The reversal of 328461157 is 751164823.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 320016321 + 8444836 = 17889^2 + 2906^2 .

It is an emirp because it is prime and its reverse (751164823) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-328461157 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (328461457) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 164230578 + 164230579.

It is an arithmetic number, because the mean of its divisors is an integer number (164230579).

Almost surely, 2^328461157 is an apocalyptic number.

It is an amenable number.

328461157 is a deficient number, since it is larger than the sum of its proper divisors (1).

328461157 is an equidigital number, since it uses as much as digits as its factorization.

328461157 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 40320, while the sum is 37.

The square root of 328461157 is about 18123.4973721961. The cubic root of 328461157 is about 689.9665019094.

The spelling of 328461157 in words is "three hundred twenty-eight million, four hundred sixty-one thousand, one hundred fifty-seven".