161457748 has 24 divisors (see below), whose sum is σ = 290606400. Its totient is φ = 78458688.

The previous prime is 161457743. The next prime is 161457787. The reversal of 161457748 is 847754161.

161457748 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (161457743) 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, 17161 + ... + 24847.

It is an arithmetic number, because the mean of its divisors is an integer number (12108600).

Almost surely, 2^161457748 is an apocalyptic number.

It is an amenable number.

161457748 is a deficient number, since it is larger than the sum of its proper divisors (129148652).

161457748 is a wasteful number, since it uses less digits than its factorization.

161457748 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7839 (or 7837 counting only the distinct ones).

The product of its digits is 188160, while the sum is 43.

The square root of 161457748 is about 12706.6025356899. The cubic root of 161457748 is about 544.5272650659.

The spelling of 161457748 in words is "one hundred sixty-one million, four hundred fifty-seven thousand, seven hundred forty-eight".