168061407 has 4 divisors (see below), whose sum is σ = 224081880. Its totient is φ = 112040936.

The previous prime is 168061379. The next prime is 168061417. The reversal of 168061407 is 704160861.

It is a happy number.

168061407 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 168061407 - 2⁷ = 168061279 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (168061417) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 28010232 + ... + 28010237.

It is an arithmetic number, because the mean of its divisors is an integer number (56020470).

Almost surely, 2^168061407 is an apocalyptic number.

168061407 is a deficient number, since it is larger than the sum of its proper divisors (56020473).

168061407 is an equidigital number, since it uses as much as digits as its factorization.

168061407 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 56020472.

The product of its (nonzero) digits is 8064, while the sum is 33.

The square root of 168061407 is about 12963.8500068460. The cubic root of 168061407 is about 551.8520561569.

The spelling of 168061407 in words is "one hundred sixty-eight million, sixty-one thousand, four hundred seven".