161474 has 4 divisors (see below), whose sum is σ = 242214. Its totient is φ = 80736.

The previous prime is 161471. The next prime is 161503. The reversal of 161474 is 474161.

161474 = 231² + 232² + 233².

161474 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 474161 = 43 ⋅11027.

It can be written as a sum of positive squares in only one way, i.e., 85849 + 75625 = 293^2 + 275^2 .

It is an Ulam number.

It is an alternating number because its digits alternate between odd and even.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 161474.

It is not an unprimeable number, because it can be changed into a prime (161471) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 40367 + ... + 40370.

2¹⁶¹⁴⁷⁴ is an apocalyptic number.

161474 is a deficient number, since it is larger than the sum of its proper divisors (80740).

161474 is an equidigital number, since it uses as much as digits as its factorization.

161474 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 80739.

The product of its digits is 672, while the sum is 23.

The square root of 161474 is about 401.8382759270. The cubic root of 161474 is about 54.4545534779.

The spelling of 161474 in words is "one hundred sixty-one thousand, four hundred seventy-four".