161930467 has 2 divisors, whose sum is σ = 161930468. Its totient is φ = 161930466.

The previous prime is 161930459. The next prime is 161930477. The reversal of 161930467 is 764039161.

It is a weak prime.

It is an emirp because it is prime and its reverse (764039161) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 161930467 - 2³ = 161930459 is a prime.

It is a super-2 number, since 2×161930467² = 52442952285676178, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (161930477) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 80965233 + 80965234.

It is an arithmetic number, because the mean of its divisors is an integer number (80965234).

Almost surely, 2^161930467 is an apocalyptic number.

161930467 is a deficient number, since it is larger than the sum of its proper divisors (1).

161930467 is an equidigital number, since it uses as much as digits as its factorization.

161930467 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 27216, while the sum is 37.

The square root of 161930467 is about 12725.1902539805. The cubic root of 161930467 is about 545.0581729560.

The spelling of 161930467 in words is "one hundred sixty-one million, nine hundred thirty thousand, four hundred sixty-seven".