169020141 has 4 divisors (see below), whose sum is σ = 225360192. Its totient is φ = 112680092.

The previous prime is 169020097. The next prime is 169020157. The reversal of 169020141 is 141020961.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 169020141 - 2⁹ = 169019629 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (169020161) 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 3 ways as a sum of consecutive naturals, for example, 28170021 + ... + 28170026.

It is an arithmetic number, because the mean of its divisors is an integer number (56340048).

Almost surely, 2^169020141 is an apocalyptic number.

It is an amenable number.

169020141 is a deficient number, since it is larger than the sum of its proper divisors (56340051).

169020141 is an equidigital number, since it uses as much as digits as its factorization.

169020141 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 56340050.

The product of its (nonzero) digits is 432, while the sum is 24.

The square root of 169020141 is about 13000.7746307672. The cubic root of 169020141 is about 552.8994440168.

The spelling of 169020141 in words is "one hundred sixty-nine million, twenty thousand, one hundred forty-one".