161469552 has 40 divisors (see below), whose sum is σ = 420330240. Its totient is φ = 53410240.

The previous prime is 161469551. The next prime is 161469559. The reversal of 161469552 is 255964161.

It is a hoax number, since the sum of its digits (39) coincides with the sum of the digits of its distinct prime factors.

It is a self number, because there is not a number n which added to its sum of digits gives 161469552.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (161469551) 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, 6552 + ... + 19127.

It is an arithmetic number, because the mean of its divisors is an integer number (10508256).

Almost surely, 2^161469552 is an apocalyptic number.

161469552 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

161469552 is an abundant number, since it is smaller than the sum of its proper divisors (258860688).

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

161469552 is a wasteful number, since it uses less digits than its factorization.

161469552 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25821 (or 25815 counting only the distinct ones).

The product of its digits is 64800, while the sum is 39.

The square root of 161469552 is about 12707.0670101326. The cubic root of 161469552 is about 544.5405346742.

The spelling of 161469552 in words is "one hundred sixty-one million, four hundred sixty-nine thousand, five hundred fifty-two".