161492074 has 8 divisors (see below), whose sum is σ = 242368128. Its totient is φ = 80702700.

The previous prime is 161492069. The next prime is 161492083. The reversal of 161492074 is 470294161.

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

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 16792 + ... + 24595.

It is an arithmetic number, because the mean of its divisors is an integer number (30296016).

Almost surely, 2^161492074 is an apocalyptic number.

161492074 is a deficient number, since it is larger than the sum of its proper divisors (80876054).

161492074 is a wasteful number, since it uses less digits than its factorization.

161492074 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 43340.

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

The square root of 161492074 is about 12707.9531790135. The cubic root of 161492074 is about 544.5658512568.

The spelling of 161492074 in words is "one hundred sixty-one million, four hundred ninety-two thousand, seventy-four".