161111248 has 40 divisors (see below), whose sum is σ = 318836736. Its totient is φ = 78844800.

The previous prime is 161111231. The next prime is 161111273. The reversal of 161111248 is 842111161.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 373593 + ... + 374023.

Almost surely, 2^161111248 is an apocalyptic number.

It is an amenable number.

161111248 is a deficient number, since it is larger than the sum of its proper divisors (157725488).

161111248 is a wasteful number, since it uses less digits than its factorization.

161111248 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 883 (or 877 counting only the distinct ones).

The product of its digits is 384, while the sum is 25.

The square root of 161111248 is about 12692.9605687562. The cubic root of 161111248 is about 544.1374544528.

The spelling of 161111248 in words is "one hundred sixty-one million, one hundred eleven thousand, two hundred forty-eight".