161164101 has 8 divisors (see below), whose sum is σ = 245583424. Its totient is φ = 92093760.

The previous prime is 161164079. The next prime is 161164123. The reversal of 161164101 is 101461161.

161164101 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (161164079) and next prime (161164123).

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 161164101 - 2⁶ = 161164037 is a prime.

It is a super-2 number, since 2×161164101² = 51947734902276402, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (21), and also a Moran number because the ratio is a prime number: 7674481 = 161164101 / (1 + 6 + 1 + 1 + 6 + 4 + 1 + 0 + 1).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (161164141) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3837220 + ... + 3837261.

It is an arithmetic number, because the mean of its divisors is an integer number (30697928).

Almost surely, 2^161164101 is an apocalyptic number.

It is an amenable number.

161164101 is a deficient number, since it is larger than the sum of its proper divisors (84419323).

161164101 is an equidigital number, since it uses as much as digits as its factorization.

161164101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7674491.

The product of its (nonzero) digits is 144, while the sum is 21.

The square root of 161164101 is about 12695.0423788186. The cubic root of 161164101 is about 544.1969498904.

The spelling of 161164101 in words is "one hundred sixty-one million, one hundred sixty-four thousand, one hundred one".