163020937 has 2 divisors, whose sum is σ = 163020938. Its totient is φ = 163020936.

The previous prime is 163020929. The next prime is 163020989. The reversal of 163020937 is 739020361.

It is the 5213-rd star number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 134119561 + 28901376 = 11581^2 + 5376^2 .

It is an emirp because it is prime and its reverse (739020361) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 163020937 - 2³ = 163020929 is a prime.

It is equal to p_9134248 and since 163020937 and 9134248 have the same sum of digits, it is a Honaker prime.

It is a junction number, because it is equal to n+sod(n) for n = 163020899 and 163020908.

It is not a weakly prime, because it can be changed into another prime (163020917) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 81510468 + 81510469.

It is an arithmetic number, because the mean of its divisors is an integer number (81510469).

Almost surely, 2^163020937 is an apocalyptic number.

It is an amenable number.

163020937 is a deficient number, since it is larger than the sum of its proper divisors (1).

163020937 is an equidigital number, since it uses as much as digits as its factorization.

163020937 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 6804, while the sum is 31.

The square root of 163020937 is about 12767.9652646771. The cubic root of 163020937 is about 546.2789445779.

The spelling of 163020937 in words is "one hundred sixty-three million, twenty thousand, nine hundred thirty-seven".