161450330 has 8 divisors (see below), whose sum is σ = 290610612. Its totient is φ = 64580128.

The previous prime is 161450327. The next prime is 161450339. The reversal of 161450330 is 33054161.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 159239161 + 2211169 = 12619^2 + 1487^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 161450296 and 161450305.

It is not an unprimeable number, because it can be changed into a prime (161450339) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8072507 + ... + 8072526.

Almost surely, 2^161450330 is an apocalyptic number.

161450330 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

161450330 is a deficient number, since it is larger than the sum of its proper divisors (129160282).

161450330 is a wasteful number, since it uses less digits than its factorization.

161450330 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16145040.

The product of its (nonzero) digits is 1080, while the sum is 23.

The square root of 161450330 is about 12706.3106368450. The cubic root of 161450330 is about 544.5189257012.

The spelling of 161450330 in words is "one hundred sixty-one million, four hundred fifty thousand, three hundred thirty".