161524408 has 8 divisors (see below), whose sum is σ = 302858280. Its totient is φ = 80762200.

The previous prime is 161524397. The next prime is 161524411. The reversal of 161524408 is 804425161.

It is a tau number, because it is divible by the number of its divisors (8).

It is a self number, because there is not a number n which added to its sum of digits gives 161524408.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10095268 + ... + 10095283.

It is an arithmetic number, because the mean of its divisors is an integer number (37857285).

Almost surely, 2^161524408 is an apocalyptic number.

It is an amenable number.

161524408 is a deficient number, since it is larger than the sum of its proper divisors (141333872).

161524408 is a wasteful number, since it uses less digits than its factorization.

161524408 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20190557 (or 20190553 counting only the distinct ones).

The product of its (nonzero) digits is 7680, while the sum is 31.

The square root of 161524408 is about 12709.2253107733. The cubic root of 161524408 is about 544.6021932203.

Adding to 161524408 its reverse (804425161), we get a palindrome (965949569).

The spelling of 161524408 in words is "one hundred sixty-one million, five hundred twenty-four thousand, four hundred eight".