161473413 has 4 divisors (see below), whose sum is σ = 215297888. Its totient is φ = 107648940.

The previous prime is 161473397. The next prime is 161473441. The reversal of 161473413 is 314374161.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 161473413 - 2⁴ = 161473397 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (161473483) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 26912233 + ... + 26912238.

It is an arithmetic number, because the mean of its divisors is an integer number (53824472).

Almost surely, 2^161473413 is an apocalyptic number.

It is an amenable number.

161473413 is a deficient number, since it is larger than the sum of its proper divisors (53824475).

161473413 is an equidigital number, since it uses as much as digits as its factorization.

161473413 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 53824474.

The product of its digits is 6048, while the sum is 30.

The square root of 161473413 is about 12707.2189325596. The cubic root of 161473413 is about 544.5448749233.

The spelling of 161473413 in words is "one hundred sixty-one million, four hundred seventy-three thousand, four hundred thirteen".