161707456 has 28 divisors (see below), whose sum is σ = 321306952. Its totient is φ = 80748288.

The previous prime is 161707453. The next prime is 161707463. The reversal of 161707456 is 654707161.

161707456 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×161707456² = 52298602651983872, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (161707453) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 76591 + ... + 78673.

Almost surely, 2^161707456 is an apocalyptic number.

161707456 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

161707456 is a deficient number, since it is larger than the sum of its proper divisors (159599496).

161707456 is a wasteful number, since it uses less digits than its factorization.

161707456 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3308 (or 3298 counting only the distinct ones).

The product of its (nonzero) digits is 35280, while the sum is 37.

The square root of 161707456 is about 12716.4246547526. The cubic root of 161707456 is about 544.8078395575.

The spelling of 161707456 in words is "one hundred sixty-one million, seven hundred seven thousand, four hundred fifty-six".