169001121 has 16 divisors (see below), whose sum is σ = 229996800. Its totient is φ = 110360448.

The previous prime is 169001113. The next prime is 169001141. The reversal of 169001121 is 121100961.

It is not a de Polignac number, because 169001121 - 2³ = 169001113 is a prime.

It is a super-2 number, since 2×169001121² = 57122757798513282, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (169001101) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 26200 + ... + 32006.

It is an arithmetic number, because the mean of its divisors is an integer number (14374800).

Almost surely, 2^169001121 is an apocalyptic number.

It is an amenable number.

169001121 is a deficient number, since it is larger than the sum of its proper divisors (60995679).

169001121 is a wasteful number, since it uses less digits than its factorization.

169001121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6008.

The product of its (nonzero) digits is 108, while the sum is 21.

The square root of 169001121 is about 13000.0431153131. The cubic root of 169001121 is about 552.8787038024.

The spelling of 169001121 in words is "one hundred sixty-nine million, one thousand, one hundred twenty-one".