169019142 has 16 divisors (see below), whose sum is σ = 338165760. Its totient is φ = 56318472.

The previous prime is 169019141. The next prime is 169019167. The reversal of 169019142 is 241910961.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (169019141) 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, 27963 + ... + 33465.

It is an arithmetic number, because the mean of its divisors is an integer number (21135360).

Almost surely, 2^169019142 is an apocalyptic number.

169019142 is an abundant number, since it is smaller than the sum of its proper divisors (169146618).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

169019142 is a wasteful number, since it uses less digits than its factorization.

169019142 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10627.

The product of its (nonzero) digits is 3888, while the sum is 33.

The square root of 169019142 is about 13000.7362099229. The cubic root of 169019142 is about 552.8983547036.

The spelling of 169019142 in words is "one hundred sixty-nine million, nineteen thousand, one hundred forty-two".