161240524 has 12 divisors (see below), whose sum is σ = 289797424. Its totient is φ = 78441264.

The previous prime is 161240489. The next prime is 161240533. The reversal of 161240524 is 425042161.

It is a happy number.

161240524 is digitally balanced in base 2 and base 3, because in such bases it contains all the possibile digits an equal number of times.

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, 544584 + ... + 544879.

Almost surely, 2^161240524 is an apocalyptic number.

It is an amenable number.

161240524 is a deficient number, since it is larger than the sum of its proper divisors (128556900).

161240524 is a wasteful number, since it uses less digits than its factorization.

161240524 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1089504 (or 1089502 counting only the distinct ones).

The product of its (nonzero) digits is 1920, while the sum is 25.

The square root of 161240524 is about 12698.0519765829. The cubic root of 161240524 is about 544.2829545511.

Adding to 161240524 its reverse (425042161), we get a palindrome (586282685).

The spelling of 161240524 in words is "one hundred sixty-one million, two hundred forty thousand, five hundred twenty-four".