161049274 has 8 divisors (see below), whose sum is σ = 241636500. Its totient is φ = 80503776.

The previous prime is 161049269. The next prime is 161049283. The reversal of 161049274 is 472940161.

It can be written as a sum of positive squares in 2 ways, for example, as 100100025 + 60949249 = 10005^2 + 7807^2 .

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

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2352 + ... + 18100.

Almost surely, 2^161049274 is an apocalyptic number.

161049274 is a deficient number, since it is larger than the sum of its proper divisors (80587226).

161049274 is a wasteful number, since it uses less digits than its factorization.

161049274 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20864.

The product of its (nonzero) digits is 12096, while the sum is 34.

The square root of 161049274 is about 12690.5190595184. The cubic root of 161049274 is about 544.0676751339.

The spelling of 161049274 in words is "one hundred sixty-one million, forty-nine thousand, two hundred seventy-four".