169225072 has 20 divisors (see below), whose sum is σ = 347160816. Its totient is φ = 79635200.

The previous prime is 169225057. The next prime is 169225093. The reversal of 169225072 is 270522961.

It is a Harshad number since it is a multiple of its sum of digits (34).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 310804 + ... + 311347.

Almost surely, 2^169225072 is an apocalyptic number.

It is an amenable number.

169225072 is an abundant number, since it is smaller than the sum of its proper divisors (177935744).

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

169225072 is a wasteful number, since it uses less digits than its factorization.

169225072 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 622176 (or 622170 counting only the distinct ones).

The product of its (nonzero) digits is 15120, while the sum is 34.

The square root of 169225072 is about 13008.6537351103. The cubic root of 169225072 is about 553.1228108354.

The spelling of 169225072 in words is "one hundred sixty-nine million, two hundred twenty-five thousand, seventy-two".