161489074 has 8 divisors (see below), whose sum is σ = 245645568. Its totient is φ = 79607220.

The previous prime is 161489057. The next prime is 161489087. The reversal of 161489074 is 470984161.

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, 568482 + ... + 568765.

It is an arithmetic number, because the mean of its divisors is an integer number (30705696).

Almost surely, 2^161489074 is an apocalyptic number.

161489074 is a deficient number, since it is larger than the sum of its proper divisors (84156494).

161489074 is a wasteful number, since it uses less digits than its factorization.

161489074 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1137320.

The product of its (nonzero) digits is 48384, while the sum is 40.

The square root of 161489074 is about 12707.8351421475. The cubic root of 161489074 is about 544.5624791456.

The spelling of 161489074 in words is "one hundred sixty-one million, four hundred eighty-nine thousand, seventy-four".