161447433 has 16 divisors (see below), whose sum is σ = 246629760. Its totient is φ = 92025216.

The previous prime is 161447399. The next prime is 161447449. The reversal of 161447433 is 334744161.

It is not a de Polignac number, because 161447433 - 2⁶ = 161447369 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 161447394 and 161447403.

It is not an unprimeable number, because it can be changed into a prime (161447483) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 810 + ... + 17987.

It is an arithmetic number, because the mean of its divisors is an integer number (15414360).

Almost surely, 2^161447433 is an apocalyptic number.

It is an amenable number.

161447433 is a deficient number, since it is larger than the sum of its proper divisors (85182327).

161447433 is a wasteful number, since it uses less digits than its factorization.

161447433 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19216.

The product of its digits is 24192, while the sum is 33.

The square root of 161447433 is about 12706.1966378614. The cubic root of 161447433 is about 544.5156688053.

The spelling of 161447433 in words is "one hundred sixty-one million, four hundred forty-seven thousand, four hundred thirty-three".