161148998 has 16 divisors (see below), whose sum is σ = 250668000. Its totient is φ = 77606592.

The previous prime is 161148941. The next prime is 161149031. The reversal of 161148998 is 899841161.

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, 22298 + ... + 28626.

It is an arithmetic number, because the mean of its divisors is an integer number (15666750).

Almost surely, 2^161148998 is an apocalyptic number.

161148998 is a deficient number, since it is larger than the sum of its proper divisors (89519002).

161148998 is a wasteful number, since it uses less digits than its factorization.

161148998 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6799.

The product of its digits is 124416, while the sum is 47.

The square root of 161148998 is about 12694.4475263794. The cubic root of 161148998 is about 544.1799501093.

The spelling of 161148998 in words is "one hundred sixty-one million, one hundred forty-eight thousand, nine hundred ninety-eight".