161450834 has 4 divisors (see below), whose sum is σ = 242176254. Its totient is φ = 80725416.

The previous prime is 161450813. The next prime is 161450843. The reversal of 161450834 is 438054161.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 118744609 + 42706225 = 10897^2 + 6535^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 161450834.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 40362707 + ... + 40362710.

Almost surely, 2^161450834 is an apocalyptic number.

161450834 is a deficient number, since it is larger than the sum of its proper divisors (80725420).

161450834 is an equidigital number, since it uses as much as digits as its factorization.

161450834 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 80725419.

The product of its (nonzero) digits is 11520, while the sum is 32.

The square root of 161450834 is about 12706.3304694943. The cubic root of 161450834 is about 544.5194923095.

The spelling of 161450834 in words is "one hundred sixty-one million, four hundred fifty thousand, eight hundred thirty-four".