161548463 has 4 divisors (see below), whose sum is σ = 165305448. Its totient is φ = 157791480.

The previous prime is 161548459. The next prime is 161548483. The reversal of 161548463 is 364845161.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 161548463 - 2² = 161548459 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 (161548483) 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, 1878428 + ... + 1878513.

It is an arithmetic number, because the mean of its divisors is an integer number (41326362).

Almost surely, 2^161548463 is an apocalyptic number.

161548463 is a deficient number, since it is larger than the sum of its proper divisors (3756985).

161548463 is an equidigital number, since it uses as much as digits as its factorization.

161548463 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3756984.

The product of its digits is 69120, while the sum is 38.

The square root of 161548463 is about 12710.1716353478. The cubic root of 161548463 is about 544.6292268137.

The spelling of 161548463 in words is "one hundred sixty-one million, five hundred forty-eight thousand, four hundred sixty-three".