160121249 has 8 divisors (see below), whose sum is σ = 169776648. Its totient is φ = 150492160.

The previous prime is 160121243. The next prime is 160121251. The reversal of 160121249 is 942121061.

It can be written as a sum of positive squares in 4 ways, for example, as 351649 + 159769600 = 593^2 + 12640^2 .

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

It is not a de Polignac number, because 160121249 - 2⁴ = 160121233 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (160121243) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6749 + ... + 19125.

It is an arithmetic number, because the mean of its divisors is an integer number (21222081).

Almost surely, 2^160121249 is an apocalyptic number.

It is an amenable number.

160121249 is a deficient number, since it is larger than the sum of its proper divisors (9655399).

160121249 is a wasteful number, since it uses less digits than its factorization.

160121249 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13155.

The product of its (nonzero) digits is 864, while the sum is 26.

The square root of 160121249 is about 12653.9025205665. The cubic root of 160121249 is about 543.0206222023.

The spelling of 160121249 in words is "one hundred sixty million, one hundred twenty-one thousand, two hundred forty-nine".