161364123 has 8 divisors (see below), whose sum is σ = 239058000. Its totient is φ = 107576064.

The previous prime is 161364107. The next prime is 161364139. The reversal of 161364123 is 321463161.

161364123 is a `hidden beast` number, since 1 + 6 + 13 + 641 + 2 + 3 = 666.

It is an interprime number because it is at equal distance from previous prime (161364107) and next prime (161364139).

It is not a de Polignac number, because 161364123 - 2⁴ = 161364107 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27), and also a Moran number because the ratio is a prime number: 5976449 = 161364123 / (1 + 6 + 1 + 3 + 6 + 4 + 1 + 2 + 3).

It is not an unprimeable number, because it can be changed into a prime (161364103) 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, 2988198 + ... + 2988251.

It is an arithmetic number, because the mean of its divisors is an integer number (29882250).

Almost surely, 2^161364123 is an apocalyptic number.

161364123 is a deficient number, since it is larger than the sum of its proper divisors (77693877).

161364123 is an equidigital number, since it uses as much as digits as its factorization.

161364123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5976458 (or 5976452 counting only the distinct ones).

The product of its digits is 2592, while the sum is 27.

The square root of 161364123 is about 12702.9178931457. The cubic root of 161364123 is about 544.4219924827.

The spelling of 161364123 in words is "one hundred sixty-one million, three hundred sixty-four thousand, one hundred twenty-three".