161496413 has 8 divisors (see below), whose sum is σ = 184150008. Its totient is φ = 140304384.

The previous prime is 161496403. The next prime is 161496437. The reversal of 161496413 is 314694161.

161496413 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 38663524 + 122832889 = 6218^2 + 11083^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 161496413 - 2⁴ = 161496397 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (161496403) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 365156 + ... + 365597.

It is an arithmetic number, because the mean of its divisors is an integer number (23018751).

Almost surely, 2^161496413 is an apocalyptic number.

161496413 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

It is an amenable number.

161496413 is a deficient number, since it is larger than the sum of its proper divisors (22653595).

161496413 is a wasteful number, since it uses less digits than its factorization.

161496413 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 730783.

The product of its digits is 15552, while the sum is 35.

The square root of 161496413 is about 12708.1238977278. The cubic root of 161496413 is about 544.5707283797.

The spelling of 161496413 in words is "one hundred sixty-one million, four hundred ninety-six thousand, four hundred thirteen".