169061901 has 16 divisors (see below), whose sum is σ = 231399168. Its totient is φ = 109728000.

The previous prime is 169061897. The next prime is 169061903. The reversal of 169061901 is 109160961.

It is not a de Polignac number, because 169061901 - 2² = 169061897 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (169061903) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 72780 + ... + 75066.

It is an arithmetic number, because the mean of its divisors is an integer number (14462448).

Almost surely, 2^169061901 is an apocalyptic number.

It is an amenable number.

169061901 is a deficient number, since it is larger than the sum of its proper divisors (62337267).

169061901 is a wasteful number, since it uses less digits than its factorization.

169061901 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2932.

The product of its (nonzero) digits is 2916, while the sum is 33.

The square root of 169061901 is about 13002.3805897228. The cubic root of 169061901 is about 552.9449754337.

The spelling of 169061901 in words is "one hundred sixty-nine million, sixty-one thousand, nine hundred one".