161223496 has 32 divisors (see below), whose sum is σ = 346544640. Its totient is φ = 68882688.

The previous prime is 161223481. The next prime is 161223511. The reversal of 161223496 is 694322161.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (161223481) and next prime (161223511).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 14601 + ... + 23143.

It is an arithmetic number, because the mean of its divisors is an integer number (10829520).

Almost surely, 2^161223496 is an apocalyptic number.

It is an amenable number.

161223496 is an abundant number, since it is smaller than the sum of its proper divisors (185321144).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

161223496 is a wasteful number, since it uses less digits than its factorization.

161223496 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8893 (or 8889 counting only the distinct ones).

The product of its digits is 15552, while the sum is 34.

The square root of 161223496 is about 12697.3814623331. The cubic root of 161223496 is about 544.2637939906.

The spelling of 161223496 in words is "one hundred sixty-one million, two hundred twenty-three thousand, four hundred ninety-six".