161474642 has 16 divisors (see below), whose sum is σ = 277896960. Its totient is φ = 68932608.

The previous prime is 161474633. The next prime is 161474669. The reversal of 161474642 is 246474161.

It is a super-3 number, since 3×161474642³ (a number of 26 digits) contains 333 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 18842 + ... + 26037.

It is an arithmetic number, because the mean of its divisors is an integer number (17368560).

Almost surely, 2^161474642 is an apocalyptic number.

161474642 is a deficient number, since it is larger than the sum of its proper divisors (116422318).

161474642 is a wasteful number, since it uses less digits than its factorization.

161474642 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 45145.

The product of its digits is 32256, while the sum is 35.

The square root of 161474642 is about 12707.2672908065. The cubic root of 161474642 is about 544.5462564592.

The spelling of 161474642 in words is "one hundred sixty-one million, four hundred seventy-four thousand, six hundred forty-two".