168995045 has 8 divisors (see below), whose sum is σ = 214723224. Its totient is φ = 127243264.

The previous prime is 168995041. The next prime is 168995107. The reversal of 168995045 is 540599861.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 76335169 + 92659876 = 8737^2 + 9626^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 168995045 - 2² = 168995041 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (168995041) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 994004 + ... + 994173.

It is an arithmetic number, because the mean of its divisors is an integer number (26840403).

Almost surely, 2^168995045 is an apocalyptic number.

It is an amenable number.

168995045 is a deficient number, since it is larger than the sum of its proper divisors (45728179).

168995045 is a wasteful number, since it uses less digits than its factorization.

168995045 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1988199.

The product of its (nonzero) digits is 388800, while the sum is 47.

The square root of 168995045 is about 12999.8094216800. The cubic root of 168995045 is about 552.8720779464.

The spelling of 168995045 in words is "one hundred sixty-eight million, nine hundred ninety-five thousand, forty-five".