161223467 has 16 divisors (see below), whose sum is σ = 171835392. Its totient is φ = 150996960.

The previous prime is 161223451. The next prime is 161223479. The reversal of 161223467 is 764322161.

It is a cyclic number.

It is not a de Polignac number, because 161223467 - 2⁴ = 161223451 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (161223067) 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 15 ways as a sum of consecutive naturals, for example, 420758 + ... + 421140.

It is an arithmetic number, because the mean of its divisors is an integer number (10739712).

Almost surely, 2^161223467 is an apocalyptic number.

161223467 is a deficient number, since it is larger than the sum of its proper divisors (10611925).

161223467 is a wasteful number, since it uses less digits than its factorization.

161223467 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 818.

The product of its digits is 12096, while the sum is 32.

The square root of 161223467 is about 12697.3803203653. The cubic root of 161223467 is about 544.2637613575.

The spelling of 161223467 in words is "one hundred sixty-one million, two hundred twenty-three thousand, four hundred sixty-seven".