161245355 has 8 divisors (see below), whose sum is σ = 193933872. Its totient is φ = 128703328.

The previous prime is 161245351. The next prime is 161245361. The reversal of 161245355 is 553542161.

161245355 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 161245355 - 2² = 161245351 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (161245351) 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, 34184 + ... + 38613.

It is an arithmetic number, because the mean of its divisors is an integer number (24241734).

Almost surely, 2^161245355 is an apocalyptic number.

161245355 is a deficient number, since it is larger than the sum of its proper divisors (32688517).

161245355 is an equidigital number, since it uses as much as digits as its factorization.

161245355 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 73245.

The product of its digits is 18000, while the sum is 32.

The square root of 161245355 is about 12698.2422011867. The cubic root of 161245355 is about 544.2883903324.

The spelling of 161245355 in words is "one hundred sixty-one million, two hundred forty-five thousand, three hundred fifty-five".