161151101 has 4 divisors (see below), whose sum is σ = 161239104. Its totient is φ = 161063100.

The previous prime is 161151097. The next prime is 161151119. The reversal of 161151101 is 101151161.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 161151101 - 2² = 161151097 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 161151101.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (161159101) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 41195 + ... + 44936.

It is an arithmetic number, because the mean of its divisors is an integer number (40309776).

Almost surely, 2^161151101 is an apocalyptic number.

It is an amenable number.

161151101 is a deficient number, since it is larger than the sum of its proper divisors (88003).

161151101 is an equidigital number, since it uses as much as digits as its factorization.

161151101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 88002.

The product of its (nonzero) digits is 30, while the sum is 17.

The square root of 161151101 is about 12694.5303575989. The cubic root of 161151101 is about 544.1823172881.

The spelling of 161151101 in words is "one hundred sixty-one million, one hundred fifty-one thousand, one hundred one".