161283528 has 64 divisors (see below), whose sum is σ = 512016000. Its totient is φ = 46080576.

The previous prime is 161283511. The next prime is 161283541. The reversal of 161283528 is 825382161.

It is a happy number.

161283528 is a `hidden beast` number, since 1 + 6 + 128 + 3 + 528 = 666.

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

It is a junction number, because it is equal to n+sod(n) for n = 161283492 and 161283501.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 51823 + ... + 54846.

It is an arithmetic number, because the mean of its divisors is an integer number (8000250).

Almost surely, 2^161283528 is an apocalyptic number.

161283528 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

161283528 is an abundant number, since it is smaller than the sum of its proper divisors (350732472).

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

161283528 is a wasteful number, since it uses less digits than its factorization.

161283528 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 106691 (or 106681 counting only the distinct ones).

The product of its digits is 23040, while the sum is 36.

The square root of 161283528 is about 12699.7451942943. The cubic root of 161283528 is about 544.3313383011.

It can be divided in two parts, 16128352 and 8, that added together give a triangular number (16128360 = T₅₆₇₉).

The spelling of 161283528 in words is "one hundred sixty-one million, two hundred eighty-three thousand, five hundred twenty-eight".