162117749 has 8 divisors (see below), whose sum is σ = 164131968. Its totient is φ = 160110720.

The previous prime is 162117737. The next prime is 162117751. The reversal of 162117749 is 947711261.

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 162117749 - 2⁸ = 162117493 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 (162117719) 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, 53924 + ... + 56850.

It is an arithmetic number, because the mean of its divisors is an integer number (20516496).

Almost surely, 2^162117749 is an apocalyptic number.

It is an amenable number.

162117749 is a deficient number, since it is larger than the sum of its proper divisors (2014219).

162117749 is an equidigital number, since it uses as much as digits as its factorization.

162117749 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3595.

The product of its digits is 21168, while the sum is 38.

The square root of 162117749 is about 12732.5468387122. The cubic root of 162117749 is about 545.2682224879.

The spelling of 162117749 in words is "one hundred sixty-two million, one hundred seventeen thousand, seven hundred forty-nine".