161254484 has 12 divisors (see below), whose sum is σ = 285768000. Its totient is φ = 79606488.

The previous prime is 161254459. The next prime is 161254487. The reversal of 161254484 is 484452161.

It is a super-2 number, since 2×161254484² = 52006017220212512, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (161254487) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 254834 + ... + 255465.

It is an arithmetic number, because the mean of its divisors is an integer number (23814000).

Almost surely, 2^161254484 is an apocalyptic number.

It is an amenable number.

161254484 is a deficient number, since it is larger than the sum of its proper divisors (124513516).

161254484 is a wasteful number, since it uses less digits than its factorization.

161254484 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 510382 (or 510380 counting only the distinct ones).

The product of its digits is 30720, while the sum is 35.

The square root of 161254484 is about 12698.6016553005. The cubic root of 161254484 is about 544.2986618737.

The spelling of 161254484 in words is "one hundred sixty-one million, two hundred fifty-four thousand, four hundred eighty-four".