168132407 has 2 divisors, whose sum is σ = 168132408. Its totient is φ = 168132406.

The previous prime is 168132389. The next prime is 168132421. The reversal of 168132407 is 704231861.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 168132407 - 2¹⁴ = 168116023 is a prime.

It is a super-2 number, since 2×168132407² = 56537012567227298, which contains 22 as substring.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (168132467) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 84066203 + 84066204.

It is an arithmetic number, because the mean of its divisors is an integer number (84066204).

Almost surely, 2^168132407 is an apocalyptic number.

168132407 is a deficient number, since it is larger than the sum of its proper divisors (1).

168132407 is an equidigital number, since it uses as much as digits as its factorization.

168132407 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 8064, while the sum is 32.

The square root of 168132407 is about 12966.5881017329. The cubic root of 168132407 is about 551.9297578740.

The spelling of 168132407 in words is "one hundred sixty-eight million, one hundred thirty-two thousand, four hundred seven".