161473547 has 6 divisors (see below), whose sum is σ = 168799932. Its totient is φ = 154452452.

The previous prime is 161473541. The next prime is 161473553. The reversal of 161473547 is 745374161.

It is an interprime number because it is at equal distance from previous prime (161473541) and next prime (161473553).

It is not a de Polignac number, because 161473547 - 2⁶ = 161473483 is a prime.

It is a super-2 number, since 2×161473547² = 52147412761522418, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 161473547.

It is not an unprimeable number, because it can be changed into a prime (161473541) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 152093 + ... + 153150.

It is an arithmetic number, because the mean of its divisors is an integer number (28133322).

Almost surely, 2^161473547 is an apocalyptic number.

161473547 is a deficient number, since it is larger than the sum of its proper divisors (7326385).

161473547 is an equidigital number, since it uses as much as digits as its factorization.

161473547 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 305289 (or 305266 counting only the distinct ones).

The product of its digits is 70560, while the sum is 38.

The square root of 161473547 is about 12707.2242051520. The cubic root of 161473547 is about 544.5450255549.

The spelling of 161473547 in words is "one hundred sixty-one million, four hundred seventy-three thousand, five hundred forty-seven".