169155252 has 180 divisors, whose sum is σ = 530173280. Its totient is φ = 45341856.

The previous prime is 169155241. The next prime is 169155319. The reversal of 169155252 is 252551961.

169155252 is a `hidden beast` number, since 16 + 91 + 552 + 5 + 2 = 666.

169155252 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×169155252² = 57226998558367008, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 59 ways as a sum of consecutive naturals, for example, 1642233 + ... + 1642335.

Almost surely, 2^169155252 is an apocalyptic number.

169155252 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 169155252, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (265086640).

169155252 is an abundant number, since it is smaller than the sum of its proper divisors (361018028).

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

169155252 is a wasteful number, since it uses less digits than its factorization.

169155252 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 160 (or 134 counting only the distinct ones).

The product of its digits is 27000, while the sum is 36.

The square root of 169155252 is about 13005.9698600297. The cubic root of 169155252 is about 553.0467300146.

The spelling of 169155252 in words is "one hundred sixty-nine million, one hundred fifty-five thousand, two hundred fifty-two".