161441432 has 8 divisors (see below), whose sum is σ = 302702700. Its totient is φ = 80720712.

The previous prime is 161441431. The next prime is 161441447. The reversal of 161441432 is 234144161.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (8).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (161441431) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10090082 + ... + 10090097.

Almost surely, 2^161441432 is an apocalyptic number.

It is an amenable number.

161441432 is a deficient number, since it is larger than the sum of its proper divisors (141261268).

161441432 is a wasteful number, since it uses less digits than its factorization.

161441432 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20180185 (or 20180181 counting only the distinct ones).

The product of its digits is 2304, while the sum is 26.

The square root of 161441432 is about 12705.9604910451. The cubic root of 161441432 is about 544.5089221738.

Adding to 161441432 its reverse (234144161), we get a palindrome (395585593).

It can be divided in two parts, 16144 and 1432, that added together give a cube (17576 = 26³).

The spelling of 161441432 in words is "one hundred sixty-one million, four hundred forty-one thousand, four hundred thirty-two".