161101154 has 16 divisors (see below), whose sum is σ = 253775808. Its totient is φ = 76554192.

The previous prime is 161101111. The next prime is 161101159. The reversal of 161101154 is 451101161.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (161101159) by changing a digit.

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, 3932 + ... + 18375.

It is an arithmetic number, because the mean of its divisors is an integer number (15860988).

Almost surely, 2^161101154 is an apocalyptic number.

161101154 is a deficient number, since it is larger than the sum of its proper divisors (92674654).

161101154 is a wasteful number, since it uses less digits than its factorization.

161101154 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22489.

The product of its (nonzero) digits is 120, while the sum is 20.

The square root of 161101154 is about 12692.5629405570. The cubic root of 161101154 is about 544.1260903835.

The spelling of 161101154 in words is "one hundred sixty-one million, one hundred one thousand, one hundred fifty-four".